/*
 * Copyright (C) 2005 - 2013 MaNGOS <http://www.getmangos.com/>
 *
 * Copyright (C) 2008 - 2013 Trinity <http://www.trinitycore.org/>
 *
 * Copyright (C) 2010 - 2013 ProjectSkyfire <http://www.projectskyfire.org/>
 *
 * Copyright (C) 2011 - 2013 ArkCORE <http://www.arkania.net/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "gamePCH.h"
#include "SpellMgr.h"
#include "ObjectMgr.h"
#include "SpellAuras.h"
#include "SpellAuraDefines.h"

#include "DBCStores.h"
#include "World.h"
#include "Chat.h"
#include "Spell.h"
#include "BattlegroundMgr.h"
#include "CreatureAI.h"
#include "MapManager.h"
#include "BattlegroundIC.h"

#include "OutdoorPvPMgr.h"
#include "OutdoorPvPWG.h"

bool IsAreaEffectTarget[TOTAL_SPELL_TARGETS];
SpellEffectTargetTypes EffectTargetType[TOTAL_SPELL_EFFECTS];
SpellSelectTargetTypes SpellTargetType[TOTAL_SPELL_TARGETS];

SpellMgr::SpellMgr ()
{
    for (int i = 0; i < TOTAL_SPELL_EFFECTS; ++i)
    {
        switch (i)
        {
        case SPELL_EFFECT_PERSISTENT_AREA_AURA:          //27
        case SPELL_EFFECT_SUMMON:          //28
        case SPELL_EFFECT_TRIGGER_MISSILE:          //32
        case SPELL_EFFECT_TRANS_DOOR:          //50 summon object
        case SPELL_EFFECT_SUMMON_PET:          //56
        case SPELL_EFFECT_ADD_FARSIGHT:          //72
        case SPELL_EFFECT_SUMMON_OBJECT_WILD:          //76
            //case SPELL_EFFECT_SUMMON_CRITTER:       //97 not 303
        case SPELL_EFFECT_SUMMON_OBJECT_SLOT1:          //104
        case SPELL_EFFECT_SUMMON_OBJECT_SLOT2:          //105
        case SPELL_EFFECT_SUMMON_OBJECT_SLOT3:          //106
        case SPELL_EFFECT_SUMMON_OBJECT_SLOT4:          //107
        case SPELL_EFFECT_SUMMON_DEAD_PET:          //109
        case SPELL_EFFECT_TRIGGER_SPELL_2:          //151 ritual of summon
            EffectTargetType[i] = SPELL_REQUIRE_DEST;
            break;
        case SPELL_EFFECT_PARRY:          // 0
        case SPELL_EFFECT_BLOCK:          // 0
        case SPELL_EFFECT_SKILL:          // always with dummy 3 as A
            //case SPELL_EFFECT_LEARN_SPELL: // 0 may be 5 pet
        case SPELL_EFFECT_TRADE_SKILL:          // 0 or 1
        case SPELL_EFFECT_PROFICIENCY:          // 0
            EffectTargetType[i] = SPELL_REQUIRE_NONE;
            break;
        case SPELL_EFFECT_ENCHANT_ITEM:
        case SPELL_EFFECT_ENCHANT_ITEM_TEMPORARY:
        case SPELL_EFFECT_DISENCHANT:
            //in 243 this is 0, in 309 it is 1
            //so both item target and unit target is pushed, and cause crash
            //case SPELL_EFFECT_FEED_PET:
        case SPELL_EFFECT_PROSPECTING:
        case SPELL_EFFECT_MILLING:
        case SPELL_EFFECT_ENCHANT_ITEM_PRISMATIC:
            EffectTargetType[i] = SPELL_REQUIRE_ITEM;
            break;
            //caster must be pushed otherwise no sound
        case SPELL_EFFECT_APPLY_AREA_AURA_PARTY:
        case SPELL_EFFECT_APPLY_AREA_AURA_FRIEND:
        case SPELL_EFFECT_APPLY_AREA_AURA_ENEMY:
        case SPELL_EFFECT_APPLY_AREA_AURA_PET:
        case SPELL_EFFECT_APPLY_AREA_AURA_OWNER:
        case SPELL_EFFECT_APPLY_AREA_AURA_RAID:
        case SPELL_EFFECT_CHARGE:
        case SPELL_EFFECT_CHARGE_DEST:
        case SPELL_EFFECT_JUMP:
        case SPELL_EFFECT_JUMP_DEST:
        case SPELL_EFFECT_LEAP_BACK:
            EffectTargetType[i] = SPELL_REQUIRE_CASTER;
            break;
            //case SPELL_EFFECT_WMO_DAMAGE:
            //case SPELL_EFFECT_WMO_REPAIR:
            //case SPELL_EFFECT_WMO_CHANGE:
            //    EffectTargetType[i] = SPELL_REQUIRE_GOBJECT;
            //    break;
        default:
            EffectTargetType[i] = SPELL_REQUIRE_UNIT;
            break;
        }
    }

    for (int i = 0; i < TOTAL_SPELL_TARGETS; ++i)
    {
        switch (i)
        {
        case TARGET_UNIT_CASTER:
        case TARGET_UNIT_CASTER_FISHING:
        case TARGET_UNIT_CASTER_UNKNOWN:
        case TARGET_UNIT_MASTER:
        case TARGET_UNIT_PET:
        case TARGET_UNIT_PARTY_CASTER:
        case TARGET_UNIT_RAID_CASTER:
        case TARGET_UNIT_VEHICLE:
        case TARGET_UNIT_PASSENGER_0:
        case TARGET_UNIT_PASSENGER_1:
        case TARGET_UNIT_PASSENGER_2:
        case TARGET_UNIT_PASSENGER_3:
        case TARGET_UNIT_PASSENGER_4:
        case TARGET_UNIT_PASSENGER_5:
        case TARGET_UNIT_PASSENGER_6:
        case TARGET_UNIT_PASSENGER_7:
        case TARGET_UNIT_SUMMONER:
            SpellTargetType[i] = TARGET_TYPE_UNIT_CASTER;
            break;
        case TARGET_UNIT_TARGET_MINIPET:
        case TARGET_UNIT_TARGET_ALLY:
        case TARGET_UNIT_TARGET_RAID:
        case TARGET_UNIT_TARGET_ANY:
        case TARGET_UNIT_TARGET_ENEMY:
        case TARGET_UNIT_TARGET_PARTY:
        case TARGET_UNIT_PARTY_TARGET:
        case TARGET_UNIT_CLASS_TARGET:
        case TARGET_UNIT_CHAINHEAL:
            SpellTargetType[i] = TARGET_TYPE_UNIT_TARGET;
            break;
        case TARGET_UNIT_NEARBY_ENEMY:
        case TARGET_UNIT_NEARBY_ALLY:
        case TARGET_UNIT_NEARBY_ALLY_UNK:
        case TARGET_UNIT_NEARBY_ENTRY:
        case TARGET_UNIT_NEARBY_RAID:
        case TARGET_GAMEOBJECT_NEARBY_ENTRY:
            SpellTargetType[i] = TARGET_TYPE_UNIT_NEARBY;
            break;
        case TARGET_UNIT_AREA_ENEMY_SRC:
        case TARGET_UNIT_AREA_ALLY_SRC:
        case TARGET_UNIT_AREA_ENTRY_SRC:
        case TARGET_UNIT_AREA_PARTY_SRC:
        case TARGET_GAMEOBJECT_AREA_SRC:
            SpellTargetType[i] = TARGET_TYPE_AREA_SRC;
            break;
        case TARGET_UNIT_AREA_ENEMY_DST:
        case TARGET_UNIT_AREA_ALLY_DST:
        case TARGET_UNIT_AREA_ENTRY_DST:
        case TARGET_UNIT_AREA_PARTY_DST:
        case TARGET_GAMEOBJECT_AREA_DST:
            SpellTargetType[i] = TARGET_TYPE_AREA_DST;
            break;
        case TARGET_UNIT_CONE_ENEMY:
        case TARGET_UNIT_CONE_ALLY:
        case TARGET_UNIT_CONE_ENTRY:
        case TARGET_UNIT_CONE_ENEMY_UNKNOWN:
        case TARGET_UNIT_AREA_PATH:
        case TARGET_GAMEOBJECT_AREA_PATH:
            SpellTargetType[i] = TARGET_TYPE_AREA_CONE;
            break;
        case TARGET_DST_CASTER:
        case TARGET_SRC_CASTER:
        case TARGET_MINION:
        case TARGET_DEST_CASTER_FRONT_LEAP:
        case TARGET_DEST_CASTER_FRONT:
        case TARGET_DEST_CASTER_BACK:
        case TARGET_DEST_CASTER_RIGHT:
        case TARGET_DEST_CASTER_LEFT:
        case TARGET_DEST_CASTER_FRONT_LEFT:
        case TARGET_DEST_CASTER_BACK_LEFT:
        case TARGET_DEST_CASTER_BACK_RIGHT:
        case TARGET_DEST_CASTER_FRONT_RIGHT:
        case TARGET_DEST_CASTER_RANDOM:
        case TARGET_DEST_CASTER_RADIUS:
            SpellTargetType[i] = TARGET_TYPE_DEST_CASTER;
            break;
        case TARGET_DST_TARGET_ENEMY:
        case TARGET_DEST_TARGET_ANY:
        case TARGET_DEST_TARGET_FRONT:
        case TARGET_DEST_TARGET_BACK:
        case TARGET_DEST_TARGET_RIGHT:
        case TARGET_DEST_TARGET_LEFT:
        case TARGET_DEST_TARGET_FRONT_LEFT:
        case TARGET_DEST_TARGET_BACK_LEFT:
        case TARGET_DEST_TARGET_BACK_RIGHT:
        case TARGET_DEST_TARGET_FRONT_RIGHT:
        case TARGET_DEST_TARGET_RANDOM:
        case TARGET_DEST_TARGET_RADIUS:
            SpellTargetType[i] = TARGET_TYPE_DEST_TARGET;
            break;
        case TARGET_DEST_DYNOBJ_ENEMY:
        case TARGET_DEST_DYNOBJ_ALLY:
        case TARGET_DEST_DYNOBJ_ALL_UNITS:
        case TARGET_DEST_DEST:
        case TARGET_DEST_TRAJ:
        case TARGET_DEST_DEST_FRONT_LEFT:
        case TARGET_DEST_DEST_BACK_LEFT:
        case TARGET_DEST_DEST_BACK_RIGHT:
        case TARGET_DEST_DEST_FRONT_RIGHT:
        case TARGET_DEST_DEST_FRONT:
        case TARGET_DEST_DEST_BACK:
        case TARGET_DEST_DEST_RIGHT:
        case TARGET_DEST_DEST_LEFT:
        case TARGET_DEST_DEST_RANDOM:
        case TARGET_DEST_DEST_RANDOM_DIR_DIST:
            SpellTargetType[i] = TARGET_TYPE_DEST_DEST;
            break;
        case TARGET_DST_DB:
        case TARGET_DST_HOME:
        case TARGET_DST_NEARBY_ENTRY:
            SpellTargetType[i] = TARGET_TYPE_DEST_SPECIAL;
            break;
        case TARGET_UNIT_CHANNEL_TARGET:
        case TARGET_DEST_CHANNEL_TARGET:
        case TARGET_DEST_CHANNEL_CASTER:
            SpellTargetType[i] = TARGET_TYPE_CHANNEL;
            break;
        default:
            SpellTargetType[i] = TARGET_TYPE_DEFAULT;
        }
    }

    for (int32 i = 0; i < TOTAL_SPELL_TARGETS; ++i)
    {
        switch (i)
        {
        case TARGET_UNIT_AREA_ENEMY_DST:
        case TARGET_UNIT_AREA_ENEMY_SRC:
        case TARGET_UNIT_AREA_ALLY_DST:
        case TARGET_UNIT_AREA_ALLY_SRC:
        case TARGET_UNIT_AREA_ENTRY_DST:
        case TARGET_UNIT_AREA_ENTRY_SRC:
        case TARGET_UNIT_AREA_PARTY_DST:
        case TARGET_UNIT_AREA_PARTY_SRC:
        case TARGET_UNIT_PARTY_TARGET:
        case TARGET_UNIT_PARTY_CASTER:
        case TARGET_UNIT_CONE_ENEMY:
        case TARGET_UNIT_CONE_ALLY:
        case TARGET_UNIT_CONE_ENEMY_UNKNOWN:
        case TARGET_UNIT_AREA_PATH:
        case TARGET_GAMEOBJECT_AREA_PATH:
        case TARGET_UNIT_RAID_CASTER:
            IsAreaEffectTarget[i] = true;
            break;
        default:
            IsAreaEffectTarget[i] = false;
            break;
        }
    }
}

SpellMgr::~SpellMgr ()
{
}

SpellScaling::SpellScaling (uint8 playerLevel_, const SpellEntry * spellEntry_)
{
    playerLevel = playerLevel_;
    spellEntry = spellEntry_;
    for (int i = 0; i < 3; i++)
    {
        avg[i] = 0.f;
        min[i] = 0.f;
        max[i] = 0.f;
        pts[i] = 0.f;
    }
    cast = 0;
    canScale = false;

    if (!spellEntry->SpellScalingId)
        return;

    if (!spellEntry->SpellScaling_class)
        return;

    float base_coef = spellEntry->base_coef;
    uint8 base_level = spellEntry->base_level_coef;

    int32 ct_min = spellEntry->ct_min;
    int32 ct_max = spellEntry->ct_max;
    uint8 ct_level = spellEntry->ct_max_level;

    int8 class_ = spellEntry->SpellScaling_class;

    float gtCoef = GetGtSpellScalingValue(class_, playerLevel_);

    if (gtCoef == -1.0f)
        return;

    gtCoef *= (std::min(playerLevel, base_level) + (base_coef * std::max(0, playerLevel - base_level))) / playerLevel;

    //cast time
    cast = 0;
    if (ct_max > 0 && playerLevel_ > 1)
        cast = ct_min + (((playerLevel - 1) * (ct_max - ct_min)) / (ct_level - 1));
    else
        cast = ct_min;

    if (cast > ct_max)
        cast = ct_max;

    //effects
    for (uint8 effIndex = 0; effIndex < 3; effIndex++)
    {
        float mult = spellEntry->coefMultiplier[effIndex];
        float randommult = spellEntry->coefRandomMultiplier[effIndex];
        float othermult = spellEntry->coefOther[effIndex];

        avg[effIndex] = mult * gtCoef;
        if (ct_max > 0)
            avg[effIndex] *= float(cast) / float(ct_max);

        min[effIndex] = roundf(avg[effIndex]) - std::floor(avg[effIndex] * randommult / 2);
        max[effIndex] = roundf(avg[effIndex]) + std::floor(avg[effIndex] * randommult / 2);
        pts[effIndex] = roundf(othermult * gtCoef);
        avg[effIndex] = std::max((float) ceil(mult), roundf(avg[effIndex]));
    }
    canScale = true;
}

bool SpellMgr::IsSrcTargetSpell (SpellEntry const *spellInfo) const
{
    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (SpellTargetType[spellInfo->EffectImplicitTargetA[i]] == TARGET_TYPE_AREA_SRC || SpellTargetType[spellInfo->EffectImplicitTargetB[i]] == TARGET_TYPE_AREA_SRC)
            return true;
    }
    return false;
}

int32 GetSpellDuration (SpellEntry const *spellInfo)
{
    if (!spellInfo)
        return 0;
    SpellDurationEntry const *du = sSpellDurationStore.LookupEntry(spellInfo->DurationIndex);
    if (!du)
        return 0;
    return (du->Duration[0] == -1) ? -1 : abs(du->Duration[0]);
}

int32 GetSpellMaxDuration (SpellEntry const *spellInfo)
{
    if (!spellInfo)
        return 0;
    SpellDurationEntry const *du = sSpellDurationStore.LookupEntry(spellInfo->DurationIndex);
    if (!du)
        return 0;
    return (du->Duration[2] == -1) ? -1 : abs(du->Duration[2]);
}

uint32 GetDispelChance (Unit* auraCaster, Unit* target, uint32 spellId, bool offensive, bool *result)
{
    // we assume that aura dispel chance is 100% on start
    // need formula for level difference based chance
    int32 resist_chance = 0;

    // Apply dispel mod from aura caster
    if (auraCaster)
        if (Player* modOwner = auraCaster->GetSpellModOwner())
            modOwner->ApplySpellMod(spellId, SPELLMOD_RESIST_DISPEL_CHANCE, resist_chance);

    // Dispel resistance from target SPELL_AURA_MOD_DISPEL_RESIST
    // Only affects offensive dispels
    if (offensive && target)
        resist_chance += target->GetTotalAuraModifier(SPELL_AURA_MOD_DISPEL_RESIST);

    // Try dispel
    if (result)
        *result = !roll_chance_i(resist_chance);

    resist_chance = resist_chance < 0 ? 0 : resist_chance;
    resist_chance = resist_chance > 100 ? 100 : resist_chance;
    return 100 - resist_chance;
}

uint32 GetSpellCastTime (SpellEntry const* spellInfo, Spell * spell)
{
    SpellCastTimesEntry const *spellCastTimeEntry = sSpellCastTimesStore.LookupEntry(spellInfo->CastingTimeIndex);

    // not all spells have cast time index and this is all is pasiive abilities
    if (!spellCastTimeEntry)
        return 0;

    int32 castTime = spellCastTimeEntry->CastTime;

    if (spell && spell->GetCaster())
    {
        SpellScaling values(spell->GetCaster()->getLevel(), spell->GetSpellInfo());
        if (values.canScale)
        {
            castTime = values.cast;
        }
    }

    if (spell && spell->GetCaster())
        spell->GetCaster()->ModSpellCastTime(spellInfo, castTime, spell);

    if (spellInfo->Attributes & SPELL_ATTR0_REQ_AMMO && (!spell || !(spell->IsAutoRepeat())))
        castTime += 500;

    return (castTime > 0) ? uint32(castTime) : 0;
}

bool IsPassiveSpell (uint32 spellId)
{
    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId);
    if (!spellInfo)
        return false;
    return IsPassiveSpell(spellInfo);
}

bool IsPassiveSpell (SpellEntry const * spellInfo)
{
    if (spellInfo->Attributes & SPELL_ATTR0_PASSIVE)
        return true;
    return false;
}

bool IsAutocastableSpell (uint32 spellId)
{
    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId);
    if (!spellInfo)
        return false;
    if (spellInfo->Attributes & SPELL_ATTR0_PASSIVE)
        return false;
    if (spellInfo->AttributesEx & SPELL_ATTR1_UNAUTOCASTABLE_BY_PET)
        return false;
    return true;
}

bool IsHigherHankOfSpell (uint32 spellId_1, uint32 spellId_2)
{
    return sSpellMgr->GetSpellRank(spellId_1) < sSpellMgr->GetSpellRank(spellId_2);
}

uint32 CalculatePowerCost (SpellEntry const * spellInfo, Unit const * caster, SpellSchoolMask schoolMask)
{
    // Spell drain all exist power on cast (Only paladin lay of Hands)
    if (spellInfo->AttributesEx & SPELL_ATTR1_DRAIN_ALL_POWER)
    {
        // If power type - health drain all
        if (spellInfo->powerType == POWER_HEALTH)
            return caster->GetHealth();
        // Else drain all power
        if (spellInfo->powerType < MAX_POWERS)
            return caster->GetPower(Powers(spellInfo->powerType));
        sLog->outError("CalculateManaCost: Unknown power type '%d' in spell %d", spellInfo->powerType, spellInfo->Id);
        return 0;
    }

    // Base powerCost
    int32 powerCost = spellInfo->manaCost;
    // PCT cost from total amount
    if (spellInfo->ManaCostPercentage)
    {
        switch (spellInfo->powerType)
        {
        // health as power used
        case POWER_HEALTH:
            powerCost += spellInfo->ManaCostPercentage * caster->GetCreateHealth() / 100;
            break;
        case POWER_MANA:
            powerCost += spellInfo->ManaCostPercentage * caster->GetCreateMana() / 100;
            break;
        case POWER_RAGE:
        case POWER_FOCUS:
        case POWER_ENERGY:
        case POWER_HAPPINESS:
            powerCost += spellInfo->ManaCostPercentage * caster->GetMaxPower(Powers(spellInfo->powerType)) / 100;
            break;
        case POWER_RUNE:
        case POWER_RUNIC_POWER:
            sLog->outDebug(LOG_FILTER_SPELLS_AURAS, "CalculateManaCost: Not implemented yet!");
            break;
        default:
            sLog->outError("CalculateManaCost: Unknown power type '%d' in spell %d", spellInfo->powerType, spellInfo->Id);
            return 0;
        }
    }

    if (spellInfo->Id == 85696)          // Zealotry
        return 0;

    SpellSchools school = GetFirstSchoolInMask(schoolMask);
    // Flat mod from caster auras by spell school
    powerCost += caster->GetInt32Value(UNIT_FIELD_POWER_COST_MODIFIER + school);
    // Shiv - costs 20 + weaponSpeed*10 energy (apply only to non-triggered spell with energy cost)
    if (spellInfo->AttributesEx4 & SPELL_ATTR4_SPELL_VS_EXTEND_COST)
        powerCost += caster->GetAttackTime(OFF_ATTACK) / 100;
    // Apply cost mod by spell
    if (Player* modOwner = caster->GetSpellModOwner())
        modOwner->ApplySpellMod(spellInfo->Id, SPELLMOD_COST, powerCost);

    if (spellInfo->Attributes & SPELL_ATTR0_LEVEL_DAMAGE_CALCULATION)
        powerCost = int32(powerCost / (1.117f * spellInfo->spellLevel / caster->getLevel() - 0.1327f));

    // PCT mod from user auras by school
    powerCost = int32(powerCost * (1.0f + caster->GetFloatValue(UNIT_FIELD_POWER_COST_MULTIPLIER + school)));
    if (powerCost < 0)
        powerCost = 0;
    return powerCost;
}

Unit* GetTriggeredSpellCaster (SpellEntry const * spellInfo, Unit * caster, Unit * target)
{
    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (SpellTargetType[spellInfo->EffectImplicitTargetA[i]] == TARGET_TYPE_UNIT_TARGET || SpellTargetType[spellInfo->EffectImplicitTargetB[i]] == TARGET_TYPE_UNIT_TARGET || SpellTargetType[spellInfo->EffectImplicitTargetA[i]] == TARGET_TYPE_CHANNEL || SpellTargetType[spellInfo->EffectImplicitTargetB[i]] == TARGET_TYPE_CHANNEL || SpellTargetType[spellInfo->EffectImplicitTargetA[i]] == TARGET_TYPE_DEST_TARGET || SpellTargetType[spellInfo->EffectImplicitTargetB[i]] == TARGET_TYPE_DEST_TARGET)
            return caster;
    }
    return target;
}

AuraState GetSpellAuraState (SpellEntry const * spellInfo)
{
    // Seals
    if (IsSealSpell(spellInfo))
        return AURA_STATE_JUDGEMENT;

    // Conflagrate aura state on Immolate
    if (spellInfo->SpellFamilyName == SPELLFAMILY_WARLOCK && (spellInfo->SpellFamilyFlags[0] & 4))
        return AURA_STATE_CONFLAGRATE;

    // Faerie Fire (druid versions)
    if (spellInfo->SpellFamilyName == SPELLFAMILY_DRUID && spellInfo->SpellFamilyFlags[0] & 0x400)
        return AURA_STATE_FAERIE_FIRE;

    // Sting (hunter's pet ability)
    if (spellInfo->Category == 1133)
        return AURA_STATE_FAERIE_FIRE;

    // Victorious
    if (spellInfo->SpellFamilyName == SPELLFAMILY_WARRIOR && spellInfo->SpellFamilyFlags[1] & 0x00040000)
        return AURA_STATE_WARRIOR_VICTORY_RUSH;

    // Swiftmend state on Regrowth & Rejuvenation
    if (spellInfo->SpellFamilyName == SPELLFAMILY_DRUID && spellInfo->SpellFamilyFlags[0] & 0x50)
        return AURA_STATE_SWIFTMEND;

    // Deadly poison aura state
    if (spellInfo->SpellFamilyName == SPELLFAMILY_ROGUE && spellInfo->SpellFamilyFlags[0] & 0x10000)
        return AURA_STATE_DEADLY_POISON;

    // Enrage aura state
    if (spellInfo->Dispel == DISPEL_ENRAGE)
        return AURA_STATE_ENRAGE;

    // Bleeding aura state
    if (GetAllSpellMechanicMask(spellInfo) & 1 << MECHANIC_BLEED)
        return AURA_STATE_BLEEDING;

    if (GetSpellSchoolMask(spellInfo) & SPELL_SCHOOL_MASK_FROST)
    {
        for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
        {
            if (spellInfo->EffectApplyAuraName[i] == SPELL_AURA_MOD_STUN || spellInfo->EffectApplyAuraName[i] == SPELL_AURA_MOD_ROOT)
                return AURA_STATE_FROZEN;
        }
    }
    return AURA_STATE_NONE;
}

SpellSpecific GetSpellSpecific (SpellEntry const * spellInfo)
{
    switch (spellInfo->SpellFamilyName)
    {
    case SPELLFAMILY_GENERIC:
    {
        // Food / Drinks (mostly)
        if (spellInfo->AuraInterruptFlags & AURA_INTERRUPT_FLAG_NOT_SEATED)
        {
            bool food = false;
            bool drink = false;
            for (int i = 0; i < MAX_SPELL_EFFECTS; ++i)
            {
                switch (spellInfo->EffectApplyAuraName[i])
                {
                // Food
                case SPELL_AURA_MOD_REGEN:
                case SPELL_AURA_OBS_MOD_HEALTH:
                    food = true;
                    break;
                    // Drink
                case SPELL_AURA_MOD_POWER_REGEN:
                case SPELL_AURA_OBS_MOD_POWER:
                    drink = true;
                    break;
                default:
                    break;
                }
            }

            if (food && drink)
                return SPELL_SPECIFIC_FOOD_AND_DRINK;
            else if (food)
                return SPELL_SPECIFIC_FOOD;
            else if (drink)
                return SPELL_SPECIFIC_DRINK;
        }
        // scrolls effects
        else
        {
            uint32 firstSpell = sSpellMgr->GetFirstSpellInChain(spellInfo->Id);
            switch (firstSpell)
            {
            case 8118:          // Strength
            case 8099:          // Stamina
            case 8112:          // Spirit
            case 8096:          // Intellect
            case 8115:          // Agility
            case 8091:          // Armor
                return SPELL_SPECIFIC_SCROLL;
            case 12880:          // Enrage (Enrage)
            case 57518:          // Enrage (Wrecking Crew)
                return SPELL_SPECIFIC_WARRIOR_ENRAGE;
            }
        }
        break;
    }
    case SPELLFAMILY_MAGE:
    {
        // family flags 18(Molten), 25(Frost/Ice), 28(Mage)
        if (spellInfo->SpellFamilyFlags[0] & 0x12040000)
            return SPELL_SPECIFIC_MAGE_ARMOR;

        // Arcane brillance and Arcane intelect (normal check fails because of flags difference)
        if (spellInfo->SpellFamilyFlags[0] & 0x400)
            return SPELL_SPECIFIC_MAGE_ARCANE_BRILLANCE;

        if ((spellInfo->SpellFamilyFlags[0] & 0x1000000) && spellInfo->EffectApplyAuraName[0] == SPELL_AURA_MOD_CONFUSE)
            return SPELL_SPECIFIC_MAGE_POLYMORPH;

        break;
    }
    case SPELLFAMILY_WARRIOR:
    {
        if (spellInfo->Id == 12292)          // Death Wish
            return SPELL_SPECIFIC_WARRIOR_ENRAGE;

        break;
    }
    case SPELLFAMILY_WARLOCK:
    {
    //Warlock (Bane of Doom | Bane of Agony | Bane of Havoc)
    if (spellInfo->Id==603 || spellInfo->Id==980 || spellInfo->Id==80240 )
      return SPELL_SPECIFIC_BANE;

        // only warlock curses have this
        if (spellInfo->Dispel == DISPEL_CURSE)
            return SPELL_SPECIFIC_CURSE;

        // Warlock (Demon Armor | Demon Skin | Fel Armor)
        if (spellInfo->SpellFamilyFlags[1] & 0x20000020 || spellInfo->SpellFamilyFlags[2] & 0x00000010)
            return SPELL_SPECIFIC_WARLOCK_ARMOR;

        //seed of corruption and corruption
        if (spellInfo->SpellFamilyFlags[1] & 0x10 || spellInfo->SpellFamilyFlags[0] & 0x2)
            return SPELL_SPECIFIC_WARLOCK_CORRUPTION;
        break;
    }
    case SPELLFAMILY_PRIEST:
    {
        // Divine Spirit and Prayer of Spirit
        if (spellInfo->SpellFamilyFlags[0] & 0x20)
            return SPELL_SPECIFIC_PRIEST_DIVINE_SPIRIT;

        break;
    }
    case SPELLFAMILY_HUNTER:
    {
        // only hunter stings have this
        if (spellInfo->Dispel == DISPEL_POISON)
            return SPELL_SPECIFIC_STING;

        // only hunter aspects have this (but not all aspects in hunter family)
        if (spellInfo->SpellFamilyFlags.HasFlag(0x00380000, 0x00440000, 0x00001010))
            return SPELL_SPECIFIC_ASPECT;

        break;
    }
    case SPELLFAMILY_PALADIN:
    {
        if (IsSealSpell(spellInfo))
            return SPELL_SPECIFIC_SEAL;

        if (spellInfo->SpellFamilyFlags[0] & 0x00002190)
            return SPELL_SPECIFIC_HAND;

        // Judgement, Judgement of Truth, Judgement of Righteoussness, Judgement of Light
        if (spellInfo->Id == 20271 || spellInfo->Id == 31804 || spellInfo->Id == 20187 || spellInfo->Id == 54158)
            return SPELL_SPECIFIC_JUDGEMENT;

        // only paladin auras have this (for palaldin class family)
        if (spellInfo->SpellFamilyFlags[2] & 0x00000020)
            return SPELL_SPECIFIC_AURA;

        break;
    }
    case SPELLFAMILY_SHAMAN:
    {
        if (IsElementalShield(spellInfo))
            return SPELL_SPECIFIC_ELEMENTAL_SHIELD;

        break;
    }

    case SPELLFAMILY_DEATHKNIGHT:
        if (spellInfo->Id == 48266 || spellInfo->Id == 48263 || spellInfo->Id == 48265)
            //if (spellInfo->Category == 47)
            return SPELL_SPECIFIC_PRESENCE;
        break;
    }

    for (int i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (spellInfo->Effect[i] == SPELL_EFFECT_APPLY_AURA)
        {
            switch (spellInfo->EffectApplyAuraName[i])
            {
            case SPELL_AURA_MOD_CHARM:
            case SPELL_AURA_MOD_POSSESS_PET:
            case SPELL_AURA_MOD_POSSESS:
            case SPELL_AURA_AOE_CHARM:
                return SPELL_SPECIFIC_CHARM;
            case SPELL_AURA_TRACK_CREATURES:
            case SPELL_AURA_TRACK_RESOURCES:
            case SPELL_AURA_TRACK_STEALTHED:
                return SPELL_SPECIFIC_TRACKER;
            case SPELL_AURA_PHASE:
                return SPELL_SPECIFIC_PHASE;
            }
        }
    }

    return SPELL_SPECIFIC_NORMAL;
}

// target not allow have more one spell specific from same caster
bool IsSingleFromSpellSpecificPerCaster (SpellSpecific spellSpec1, SpellSpecific spellSpec2)
{
    switch (spellSpec1)
    {
    case SPELL_SPECIFIC_SEAL:
    case SPELL_SPECIFIC_HAND:
    case SPELL_SPECIFIC_AURA:
    case SPELL_SPECIFIC_STING:
    case SPELL_SPECIFIC_CURSE:
    case SPELL_SPECIFIC_BANE:
    case SPELL_SPECIFIC_ASPECT:
    case SPELL_SPECIFIC_JUDGEMENT:
    case SPELL_SPECIFIC_WARLOCK_CORRUPTION:
        return spellSpec1 == spellSpec2;
    default:
        return false;
    }
}

bool IsSingleFromSpellSpecificPerTarget (SpellSpecific spellSpec1, SpellSpecific spellSpec2)
{
    switch (spellSpec1)
    {
    case SPELL_SPECIFIC_PHASE:
    case SPELL_SPECIFIC_TRACKER:
    case SPELL_SPECIFIC_WARLOCK_ARMOR:
    case SPELL_SPECIFIC_MAGE_ARMOR:
    case SPELL_SPECIFIC_ELEMENTAL_SHIELD:
    case SPELL_SPECIFIC_MAGE_POLYMORPH:
    case SPELL_SPECIFIC_PRESENCE:
    case SPELL_SPECIFIC_CHARM:
    case SPELL_SPECIFIC_SCROLL:
    case SPELL_SPECIFIC_WARRIOR_ENRAGE:
    case SPELL_SPECIFIC_MAGE_ARCANE_BRILLANCE:
    case SPELL_SPECIFIC_PRIEST_DIVINE_SPIRIT:
        return spellSpec1 == spellSpec2;
    case SPELL_SPECIFIC_FOOD:
        return spellSpec2 == SPELL_SPECIFIC_FOOD || spellSpec2 == SPELL_SPECIFIC_FOOD_AND_DRINK;
    case SPELL_SPECIFIC_DRINK:
        return spellSpec2 == SPELL_SPECIFIC_DRINK || spellSpec2 == SPELL_SPECIFIC_FOOD_AND_DRINK;
    case SPELL_SPECIFIC_FOOD_AND_DRINK:
        return spellSpec2 == SPELL_SPECIFIC_FOOD || spellSpec2 == SPELL_SPECIFIC_DRINK || spellSpec2 == SPELL_SPECIFIC_FOOD_AND_DRINK;
    default:
        return false;
    }
}

bool IsPositiveTarget (uint32 targetA, uint32 targetB)
{
    // non-positive targets
    switch (targetA)
    {
    case TARGET_UNIT_NEARBY_ENEMY:
    case TARGET_UNIT_TARGET_ENEMY:
    case TARGET_UNIT_AREA_ENEMY_SRC:
    case TARGET_UNIT_AREA_ENEMY_DST:
    case TARGET_UNIT_CONE_ENEMY:
    case TARGET_DEST_DYNOBJ_ENEMY:
    case TARGET_DST_TARGET_ENEMY:
        return false;
    default:
        break;
    }
    if (targetB)
        return IsPositiveTarget(targetB, 0);
    return true;
}

bool SpellMgr::_isPositiveEffect (uint32 spellId, uint32 effIndex, bool deep) const
{
    SpellEntry const *spellproto = sSpellStore.LookupEntry(spellId);
    if (!spellproto)
        return false;

    // not found a single positive spell with this attribute
    if (spellproto->Attributes & SPELL_ATTR0_NEGATIVE_1)
        return false;

    switch (spellproto->SpellFamilyName)
    {
    case SPELLFAMILY_GENERIC:
        switch (spellId)
        {
        case 34700:          // Allergic Reaction
        case 34709:          // Shadow Sight
        case 61987:          // Avenging Wrath Marker
        case 61988:          // Divine Shield exclude aura
            return false;
        case 30877:          // Tag Murloc
        case 61716:          // Rabbit Costume
        case 61734:          // Noblegarden Bunny
            return true;
        default:
            break;
        }
        break;
    case SPELLFAMILY_ROGUE:
        // Envenom
        if (spellproto->SpellFamilyFlags[1] & 0x8)
            return true;
        // Slice and Dice
        else if (spellproto->SpellFamilyFlags[0] & 0x40000)
            return true;
        // Ignite
        if (spellproto->SpellIconID == 45)
            return true;
        break;
    case SPELLFAMILY_MAGE:
        // Amplify Magic, Dampen Magic
        if (spellproto->SpellFamilyFlags[0] == 0x00002000)
            return true;
        // Ignite
        if (spellproto->SpellIconID == 45)
            return true;
        break;
    case SPELLFAMILY_WARRIOR:
        // Shockwave
        if (spellId == 46968)
            return false;
        break;
    case SPELLFAMILY_PRIEST:
        switch (spellId)
        {
        case 64844:          // Divine Hymn
        case 64904:          // Hymn of Hope
        case 47585:          // Dispersion
            return true;
        default:
            break;
        }
        break;
    case SPELLFAMILY_HUNTER:
        // Aspect of the Viper
        if (spellId == 34074)
            return true;
        break;
    case SPELLFAMILY_SHAMAN:
        if (spellId == 30708)
            return false;
        break;
    default:
        break;
    }

    switch (spellproto->Mechanic)
    {
    case MECHANIC_IMMUNE_SHIELD:
        return true;
    default:
        break;
    }

    // Special case: effects which determine positivity of whole spell
    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (spellproto->EffectApplyAuraName[i] == SPELL_AURA_MOD_STEALTH)
            return true;
    }

    switch (spellproto->Effect[effIndex])
    {
    case SPELL_EFFECT_DUMMY:
        // some explicitly required dummy effect sets
        switch (spellId)
        {
        case 28441:
            return false;          // AB Effect 000
        default:
            break;
        }
        break;
        // always positive effects (check before target checks that provided non-positive result in some case for positive effects)
    case SPELL_EFFECT_HEAL:
    case SPELL_EFFECT_LEARN_SPELL:
    case SPELL_EFFECT_SKILL_STEP:
    case SPELL_EFFECT_HEAL_PCT:
    case SPELL_EFFECT_ENERGIZE_PCT:
        return true;

        // non-positive aura use
    case SPELL_EFFECT_APPLY_AURA:
    case SPELL_EFFECT_APPLY_AREA_AURA_FRIEND:
    {
        switch (spellproto->EffectApplyAuraName[effIndex])
        {
        case SPELL_AURA_MOD_DAMAGE_DONE:          // dependent from bas point sign (negative -> negative)
        case SPELL_AURA_MOD_STAT:
        case SPELL_AURA_MOD_SKILL:
        case SPELL_AURA_MOD_DODGE_PERCENT:
        case SPELL_AURA_MOD_HEALING_PCT:
        case SPELL_AURA_MOD_HEALING_DONE:
        case SPELL_AURA_MOD_DAMAGE_PERCENT_DONE:
            if (SpellMgr::CalculateSpellEffectAmount(spellproto, effIndex) < 0)
                return false;
            break;
        case SPELL_AURA_MOD_DAMAGE_TAKEN:          // dependent from bas point sign (positive -> negative)
            if (SpellMgr::CalculateSpellEffectAmount(spellproto, effIndex) > 0)
                return false;
            break;
        case SPELL_AURA_MOD_CRIT_PCT:
        case SPELL_AURA_MOD_SPELL_CRIT_CHANCE:
            if (SpellMgr::CalculateSpellEffectAmount(spellproto, effIndex) > 0)
                return true;          // some expected positive spells have SPELL_ATTR1_NEGATIVE
            break;
        case SPELL_AURA_ADD_TARGET_TRIGGER:
            return true;
        case SPELL_AURA_PERIODIC_TRIGGER_SPELL_WITH_VALUE:
        case SPELL_AURA_PERIODIC_TRIGGER_SPELL:
            if (!deep)
            {
                uint32 spellTriggeredId = spellproto->EffectTriggerSpell[effIndex];
                SpellEntry const *spellTriggeredProto = sSpellStore.LookupEntry(spellTriggeredId);

                if (spellTriggeredProto)
                {
                    // non-positive targets of main spell return early
                    for (int i = 0; i < MAX_SPELL_EFFECTS; ++i)
                    {
                        if (!spellTriggeredProto->Effect[i])
                            continue;
                        // if non-positive trigger cast targeted to positive target this main cast is non-positive
                        // this will place this spell auras as debuffs
                        if (IsPositiveTarget(spellTriggeredProto->EffectImplicitTargetA[effIndex], spellTriggeredProto->EffectImplicitTargetB[effIndex]) && !_isPositiveEffect(spellTriggeredId, i, true))
                            return false;
                    }
                }
            }
        case SPELL_AURA_PROC_TRIGGER_SPELL:
            // many positive auras have negative triggered spells at damage for example and this not make it negative (it can be canceled for example)
            break;
        case SPELL_AURA_MOD_STUN:          //have positive and negative spells, we can't sort its correctly at this moment.
            if (effIndex == 0 && spellproto->Effect[1] == 0 && spellproto->Effect[2] == 0)
                return false;          // but all single stun aura spells is negative
            break;
        case SPELL_AURA_MOD_PACIFY_SILENCE:
            if (spellproto->Id == 24740)          // Wisp Costume
                return true;
            return false;
        case SPELL_AURA_MOD_ROOT:
        case SPELL_AURA_MOD_SILENCE:
        case SPELL_AURA_GHOST:
        case SPELL_AURA_PERIODIC_LEECH:
        case SPELL_AURA_MOD_STALKED:
        case SPELL_AURA_PERIODIC_DAMAGE_PERCENT:
        case SPELL_AURA_PREVENT_RESURRECTION:
            return false;
        case SPELL_AURA_PERIODIC_DAMAGE:          // used in positive spells also.
            // part of negative spell if casted at self (prevent cancel)
            if (spellproto->EffectImplicitTargetA[effIndex] == TARGET_UNIT_CASTER)
                return false;
            break;
        case SPELL_AURA_MOD_DECREASE_SPEED:          // used in positive spells also
            // part of positive spell if casted at self
            if (spellproto->EffectImplicitTargetA[effIndex] != TARGET_UNIT_CASTER)
                return false;
            // but not this if this first effect (didn't find better check)
            if (spellproto->Attributes & SPELL_ATTR0_NEGATIVE_1 && effIndex == 0)
                return false;
            break;
        case SPELL_AURA_MECHANIC_IMMUNITY:
        {
            // non-positive immunities
            switch (spellproto->EffectMiscValue[effIndex])
            {
            case MECHANIC_BANDAGE:
            case MECHANIC_SHIELD:
            case MECHANIC_MOUNT:
            case MECHANIC_INVULNERABILITY:
                return false;
            default:
                break;
            }
        }
            break;
        case SPELL_AURA_ADD_FLAT_MODIFIER:          // mods
        case SPELL_AURA_ADD_PCT_MODIFIER:
        {
            // non-positive mods
            switch (spellproto->EffectMiscValue[effIndex])
            {
            case SPELLMOD_COST:          // dependent from bas point sign (negative -> positive)
                if (SpellMgr::CalculateSpellEffectAmount(spellproto, effIndex) > 0)
                {
                    if (!deep)
                    {
                        bool negative = true;
                        for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
                        {
                            if (i != effIndex)
                                if (_isPositiveEffect(spellId, i, true))
                                {
                                    negative = false;
                                    break;
                                }
                        }
                        if (negative)
                            return false;
                    }
                }
                break;
            default:
                break;
            }
        }
            break;
        default:
            break;
        }
        break;
    }
    default:
        break;
    }

    // non-positive targets
    if (!IsPositiveTarget(spellproto->EffectImplicitTargetA[effIndex], spellproto->EffectImplicitTargetB[effIndex]))
        return false;

    // AttributesEx check
    if (spellproto->AttributesEx & SPELL_ATTR1_NEGATIVE)
        return false;

    if (!deep && spellproto->EffectTriggerSpell[effIndex] && !spellproto->EffectApplyAuraName[effIndex] && IsPositiveTarget(spellproto->EffectImplicitTargetA[effIndex], spellproto->EffectImplicitTargetB[effIndex]) && !_isPositiveSpell(spellproto->EffectTriggerSpell[effIndex], true))
        return false;

    // ok, positive
    return true;
}

bool IsPositiveSpell (uint32 spellId)
{
    if (!sSpellStore.LookupEntry(spellId))          // non-existing spells
        return false;
    return !(sSpellMgr->GetSpellCustomAttr(spellId) & SPELL_ATTR0_CU_NEGATIVE);
}

bool IsPositiveEffect (uint32 spellId, uint32 effIndex)
{
    if (!sSpellStore.LookupEntry(spellId))
        return false;
    switch (effIndex)
    {
    default:
    case 0:
        return !(sSpellMgr->GetSpellCustomAttr(spellId) & SPELL_ATTR0_CU_NEGATIVE_EFF0);
    case 1:
        return !(sSpellMgr->GetSpellCustomAttr(spellId) & SPELL_ATTR0_CU_NEGATIVE_EFF1);
    case 2:
        return !(sSpellMgr->GetSpellCustomAttr(spellId) & SPELL_ATTR0_CU_NEGATIVE_EFF2);
    }
}

bool SpellMgr::_isPositiveSpell (uint32 spellId, bool deep) const
{
    SpellEntry const *spellproto = sSpellStore.LookupEntry(spellId);
    if (!spellproto)
        return false;

    // spells with at least one negative effect are considered negative
    // some self-applied spells have negative effects but in self casting case negative check ignored.
    for (int i = 0; i < MAX_SPELL_EFFECTS; ++i)
        if (!_isPositiveEffect(spellId, i, deep))
            return false;
    return true;
}

bool IsSingleTargetSpell (SpellEntry const *spellInfo)
{
    // all other single target spells have if it has AttributesEx5
    if (spellInfo->AttributesEx5 & SPELL_ATTR5_SINGLE_TARGET_SPELL)
        return true;

    switch (GetSpellSpecific(spellInfo))
    {
    case SPELL_SPECIFIC_JUDGEMENT:
        return true;
    default:
        break;
    }

    return false;
}

bool IsSingleTargetSpells (SpellEntry const *spellInfo1, SpellEntry const *spellInfo2)
{
    // TODO - need better check
    // Equal icon and spellfamily
    if (spellInfo1->SpellFamilyName == spellInfo2->SpellFamilyName && spellInfo1->SpellIconID == spellInfo2->SpellIconID)
        return true;

    // TODO - need found Judgements rule
    SpellSpecific spec1 = GetSpellSpecific(spellInfo1);
    // spell with single target specific types
    switch (spec1)
    {
    case SPELL_SPECIFIC_JUDGEMENT:
    case SPELL_SPECIFIC_MAGE_POLYMORPH:
        if (GetSpellSpecific(spellInfo2) == spec1)
            return true;
        break;
    default:
        break;
    }

    return false;
}

SpellCastResult GetErrorAtShapeshiftedCast (SpellEntry const *spellInfo, uint32 form)
{
    // talents that learn spells can have stance requirements that need ignore
    // (this requirement only for client-side stance show in talent description)
    if (GetTalentSpellCost(spellInfo->Id) > 0 && (spellInfo->Effect[0] == SPELL_EFFECT_LEARN_SPELL || spellInfo->Effect[1] == SPELL_EFFECT_LEARN_SPELL || spellInfo->Effect[2] == SPELL_EFFECT_LEARN_SPELL))
        return SPELL_CAST_OK;

    uint32 stanceMask = (form ? 1 << (form - 1) : 0);

    if (stanceMask & spellInfo->StancesNot)          // can explicitly not be casted in this stance
        return SPELL_FAILED_NOT_SHAPESHIFT;

    if (stanceMask & spellInfo->Stances)          // can explicitly be casted in this stance
        return SPELL_CAST_OK;

    bool actAsShifted = false;
    SpellShapeshiftFormEntry const *shapeInfo = NULL;
    if (form > 0)
    {
        shapeInfo = sSpellShapeshiftFormStore.LookupEntry(form);
        if (!shapeInfo)
        {
            sLog->outError("GetErrorAtShapeshiftedCast: unknown shapeshift %u", form);
            return SPELL_CAST_OK;
        }
        actAsShifted = !(shapeInfo->flags1 & 1);          // shapeshift acts as normal form for spells
    }

    if (actAsShifted)
    {
        if (spellInfo->Attributes & SPELL_ATTR0_NOT_SHAPESHIFT)          // not while shapeshifted
            return SPELL_FAILED_NOT_SHAPESHIFT;
        else if (spellInfo->Stances != 0)          // needs other shapeshift
            return SPELL_FAILED_ONLY_SHAPESHIFT;
    }
    else
    {
        /* // needs shapeshift
         if (!(spellInfo->AttributesEx2 & SPELL_ATTR2_NOT_NEED_SHAPESHIFT) && spellInfo->Stances != 0)
         return SPELL_FAILED_ONLY_SHAPESHIFT;*/
    }

    // Check if stance disables cast of not-stance spells
    // Example: cannot cast any other spells in zombie or ghoul form
    // TODO: Find a way to disable use of these spells clientside
    if (shapeInfo && shapeInfo->flags1 & 0x400)
    {
        if (!(stanceMask & spellInfo->Stances))
            return SPELL_FAILED_ONLY_SHAPESHIFT;
    }

    return SPELL_CAST_OK;
}

void SpellMgr::LoadSpellTargetPositions ()
{
    uint32 oldMSTime = getMSTime();

    mSpellTargetPositions.clear();          // need for reload case

    //                                                0   1           2                  3                  4                  5
    QueryResult result = WorldDatabase.Query("SELECT id, target_map, target_position_x, target_position_y, target_position_z, target_orientation FROM spell_target_position");
    if (!result)
    {
        sLog->outString(">> Loaded 0 spell target coordinates. DB table `spell_target_position` is empty.");
        sLog->outString();
        return;
    }

    uint32 count = 0;

    do
    {
        Field *fields = result->Fetch();

        uint32 Spell_ID = fields[0].GetUInt32();

        SpellTargetPosition st;

        st.target_mapId = fields[1].GetUInt32();
        st.target_X = fields[2].GetFloat();
        st.target_Y = fields[3].GetFloat();
        st.target_Z = fields[4].GetFloat();
        st.target_Orientation = fields[5].GetFloat();

        MapEntry const* mapEntry = sMapStore.LookupEntry(st.target_mapId);
        if (!mapEntry)
        {
            sLog->outErrorDb("Spell (ID:%u) target map (ID: %u) does not exist in `Map.dbc`.", Spell_ID, st.target_mapId);
            continue;
        }

        if (st.target_X == 0 && st.target_Y == 0 && st.target_Z == 0)
        {
            sLog->outErrorDb("Spell (ID:%u) target coordinates not provided.", Spell_ID);
            continue;
        }

        SpellEntry const* spellInfo = sSpellStore.LookupEntry(Spell_ID);
        if (!spellInfo)
        {
            sLog->outErrorDb("Spell (ID:%u) listed in `spell_target_position` does not exist.", Spell_ID);
            continue;
        }

        bool found = false;
        for (int i = 0; i < MAX_SPELL_EFFECTS; ++i)
        {
            if (spellInfo->EffectImplicitTargetA[i] == TARGET_DST_DB || spellInfo->EffectImplicitTargetB[i] == TARGET_DST_DB)
            {
                // additional requirements
                if (spellInfo->Effect[i] == SPELL_EFFECT_BIND && spellInfo->EffectMiscValue[i])
                {
                    uint32 area_id = sMapMgr->GetAreaId(st.target_mapId, st.target_X, st.target_Y, st.target_Z);
                    if (area_id != uint32(spellInfo->EffectMiscValue[i]))
                    {
                        sLog->outErrorDb("Spell (Id: %u) listed in `spell_target_position` expected point to zone %u bit point to zone %u.", Spell_ID, spellInfo->EffectMiscValue[i], area_id);
                        break;
                    }
                }

                found = true;
                break;
            }
        }
        if (!found)
        {
            sLog->outErrorDb("Spell (Id: %u) listed in `spell_target_position` does not have target TARGET_DST_DB (17).", Spell_ID);
            continue;
        }

        mSpellTargetPositions[Spell_ID] = st;
        count++;
    }
    while (result->NextRow());

    // Check all spells
    for (uint32 i = 1; i < sSpellStore.GetNumRows(); ++i)
    {
        SpellEntry const * spellInfo = sSpellStore.LookupEntry(i);
        if (!spellInfo)
            continue;

        bool found = false;
        for (int j = 0; j < MAX_SPELL_EFFECTS; ++j)
        {
            switch (spellInfo->EffectImplicitTargetA[j])
            {
            case TARGET_DST_DB:
                found = true;
                break;
            }
            if (found)
                break;
            switch (spellInfo->EffectImplicitTargetB[j])
            {
            case TARGET_DST_DB:
                found = true;
                break;
            }
            if (found)
                break;
        }
        if (found)
        {
//            if (!sSpellMgr->GetSpellTargetPosition(i))
//                sLog->outDebug(LOG_FILTER_SPELLS_AURAS, "Spell (ID: %u) does not have record in `spell_target_position`", i);
        }
    }

    sLog->outString(">> Loaded %u spell teleport coordinates in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

bool SpellMgr::IsAffectedByMod (SpellEntry const *spellInfo, SpellModifier *mod) const
{
    // false for spellInfo == NULL
    if (!spellInfo || !mod)
        return false;

    SpellEntry const *affect_spell = sSpellStore.LookupEntry(mod->spellId);
    // False if affect_spell == NULL or spellFamily not equal
    if (!affect_spell || affect_spell->SpellFamilyName != spellInfo->SpellFamilyName)
        return false;

    // true
    if (mod->mask & spellInfo->SpellFamilyFlags)
        return true;

    return false;
}

void SpellMgr::LoadSpellProcEvents ()
{
    uint32 oldMSTime = getMSTime();

    mSpellProcEventMap.clear();          // need for reload case

    uint32 count = 0;

    //                                                0      1           2                3                 4                 5                 6          7       8        9             10
    QueryResult result = WorldDatabase.Query("SELECT entry, SchoolMask, SpellFamilyName, SpellFamilyMask0, SpellFamilyMask1, SpellFamilyMask2, procFlags, procEx, ppmRate, CustomChance, Cooldown FROM spell_proc_event");
    if (!result)
    {
        sLog->outString(">> Loaded %u spell proc event conditions", count);
        sLog->outString();
        return;
    }

    uint32 customProc = 0;
    do
    {
        Field *fields = result->Fetch();

        uint32 entry = fields[0].GetUInt32();

        const SpellEntry *spell = sSpellStore.LookupEntry(entry);
        if (!spell)
        {
            sLog->outErrorDb("Spell %u listed in `spell_proc_event` does not exist", entry);
            continue;
        }

        SpellProcEventEntry spe;

        spe.schoolMask = fields[1].GetUInt32();
        spe.spellFamilyName = fields[2].GetUInt32();
        spe.spellFamilyMask[0] = fields[3].GetUInt32();
        spe.spellFamilyMask[1] = fields[4].GetUInt32();
        spe.spellFamilyMask[2] = fields[5].GetUInt32();
        spe.procFlags = fields[6].GetUInt32();
        spe.procEx = fields[7].GetUInt32();
        spe.ppmRate = fields[8].GetFloat();
        spe.customChance = fields[9].GetFloat();
        spe.cooldown = fields[10].GetUInt32();

        mSpellProcEventMap[entry] = spe;

        if (spell->procFlags == 0)
        {
            if (spe.procFlags == 0)
            {
                sLog->outErrorDb("Spell %u listed in `spell_proc_event` probally not triggered spell", entry);
                continue;
            }
            customProc++;
        }
        count++;
    }
    while (result->NextRow());

    if (customProc)
        sLog->outString(">> Loaded %u extra and %u custom spell proc event conditions in %u ms", count, customProc, GetMSTimeDiffToNow(oldMSTime));
    else
        sLog->outString(">> Loaded %u extra spell proc event conditions in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellBonusess ()
{
    uint32 oldMSTime = getMSTime();

    mSpellBonusMap.clear();          // need for reload case
    uint32 count = 0;
    //                                                0      1             2          3         4
    QueryResult result = WorldDatabase.Query("SELECT entry, direct_bonus, dot_bonus, ap_bonus, ap_dot_bonus FROM spell_bonus_data");
    if (!result)
    {
        sLog->outString(">> Loaded %u spell bonus data", count);
        sLog->outString();
        return;
    }

    do
    {
        Field *fields = result->Fetch();

        uint32 entry = fields[0].GetUInt32();

        const SpellEntry *spell = sSpellStore.LookupEntry(entry);
        if (!spell)
        {
            sLog->outErrorDb("Spell %u listed in `spell_bonus_data` does not exist", entry);
            continue;
        }

        SpellBonusEntry& sbe = mSpellBonusMap[entry];
        sbe.direct_damage = fields[1].GetFloat();
        sbe.dot_damage = fields[2].GetFloat();
        sbe.ap_bonus = fields[3].GetFloat();
        sbe.ap_dot_bonus = fields[4].GetFloat();

        // compare with DBC coefficient
        float DBCcoef = 0;
        for (uint32 i = 0; i < 3; i++)
        {
            if (spell->EffectBonusCoefficient[i] == sbe.direct_damage || sbe.direct_damage < 0)
            {
                break;
            }

            if (DBCcoef == 0)
            {
                DBCcoef = spell->EffectBonusCoefficient[i];
            }
        }
        if (DBCcoef > 0)
        {
            sLog->outError("SPC: DB SP coef doesn't match DBC. ID: %d, DB: %f, DBC: %f, Name: %s", entry, sbe.direct_damage, DBCcoef, spell->SpellName);
        }

        count++;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u extra spell bonus data in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

bool SpellMgr::IsSpellProcEventCanTriggeredBy (SpellProcEventEntry const* spellProcEvent, uint32 EventProcFlag, SpellEntry const * procSpell, uint32 procFlags, uint32 procExtra, bool active)
{
    // No extra req need
    uint32 procEvent_procEx = PROC_EX_NONE;

    // check prockFlags for condition
    if ((procFlags & EventProcFlag) == 0)
        return false;

    bool hasFamilyMask = false;

    /* Check Periodic Auras

     *Dots can trigger if spell has no PROC_FLAG_SUCCESSFUL_NEGATIVE_MAGIC_SPELL
     nor PROC_FLAG_TAKEN_POSITIVE_MAGIC_SPELL

     *Only Hots can trigger if spell has PROC_FLAG_TAKEN_POSITIVE_MAGIC_SPELL

     *Only dots can trigger if spell has both positivity flags or PROC_FLAG_SUCCESSFUL_NEGATIVE_MAGIC_SPELL

     *Aura has to have PROC_FLAG_TAKEN_POSITIVE_MAGIC_SPELL or spellfamily specified to trigger from Hot

     */

    if (procFlags & PROC_FLAG_DONE_PERIODIC)
    {
        if (EventProcFlag & PROC_FLAG_DONE_SPELL_MAGIC_DMG_CLASS_NEG)
        {
            if (!(procExtra & PROC_EX_INTERNAL_DOT))
                return false;
        }
        else if (procExtra & PROC_EX_INTERNAL_HOT)
            procExtra |= PROC_EX_INTERNAL_REQ_FAMILY;
        else if (EventProcFlag & PROC_FLAG_DONE_SPELL_MAGIC_DMG_CLASS_POS)
            return false;
    }

    if (procFlags & PROC_FLAG_TAKEN_PERIODIC)
    {
        if (EventProcFlag & PROC_FLAG_TAKEN_SPELL_MAGIC_DMG_CLASS_POS)
        {
            if (!(procExtra & PROC_EX_INTERNAL_DOT))
                return false;
        }
        else if (procExtra & PROC_EX_INTERNAL_HOT)
            procExtra |= PROC_EX_INTERNAL_REQ_FAMILY;
        else if (EventProcFlag & PROC_FLAG_TAKEN_SPELL_NONE_DMG_CLASS_POS)
            return false;
    }
    // Trap casts are active by default
    if (procFlags & PROC_FLAG_DONE_TRAP_ACTIVATION)
        active = true;

    // Always trigger for this
    if (procFlags & (PROC_FLAG_KILLED | PROC_FLAG_KILL | PROC_FLAG_DEATH))
        return true;

    if (spellProcEvent)          // Exist event data
    {
        // Store extra req
        procEvent_procEx = spellProcEvent->procEx;

        // For melee triggers
        if (procSpell == NULL)
        {
            // Check (if set) for school (melee attack have Normal school)
            if (spellProcEvent->schoolMask && (spellProcEvent->schoolMask & SPELL_SCHOOL_MASK_NORMAL) == 0)
                return false;
        }
        else          // For spells need check school/spell family/family mask
        {
            // Check (if set) for school
            if (spellProcEvent->schoolMask && (spellProcEvent->schoolMask & procSpell->SchoolMask) == 0)
                return false;

            // Check (if set) for spellFamilyName
            if (spellProcEvent->spellFamilyName && (spellProcEvent->spellFamilyName != procSpell->SpellFamilyName))
                return false;

            // spellFamilyName is Ok need check for spellFamilyMask if present
            if (spellProcEvent->spellFamilyMask)
            {
                if ((spellProcEvent->spellFamilyMask & procSpell->SpellFamilyFlags) == 0)
                    return false;
                hasFamilyMask = true;
                // Some spells are not considered as active even with have spellfamilyflags
                if (!(procEvent_procEx & PROC_EX_ONLY_ACTIVE_SPELL))
                    active = true;
            }
        }
    }

    if (procExtra & (PROC_EX_INTERNAL_REQ_FAMILY))
    {
        if (!hasFamilyMask)
            return false;
    }

    // Check for extra req (if none) and hit/crit
    if (procEvent_procEx == PROC_EX_NONE)
    {
        // No extra req, so can trigger only for hit/crit - spell has to be active
        if ((procExtra & (PROC_EX_NORMAL_HIT | PROC_EX_CRITICAL_HIT)) && active)
            return true;
    }
    else          // Passive spells hits here only if resist/reflect/immune/evade
    {
        if (procExtra & AURA_SPELL_PROC_EX_MASK)
        {
            // if spell marked as procing only from not active spells
            if (active && procEvent_procEx & PROC_EX_NOT_ACTIVE_SPELL)
                return false;
            // if spell marked as procing only from active spells
            if (!active && procEvent_procEx & PROC_EX_ONLY_ACTIVE_SPELL)
                return false;
            // Exist req for PROC_EX_EX_TRIGGER_ALWAYS
            if (procEvent_procEx & PROC_EX_EX_TRIGGER_ALWAYS)
                return true;
            // PROC_EX_NOT_ACTIVE_SPELL and PROC_EX_ONLY_ACTIVE_SPELL flags handle: if passed checks before
            if ((procExtra & (PROC_EX_NORMAL_HIT | PROC_EX_CRITICAL_HIT)) && ((procEvent_procEx & (AURA_SPELL_PROC_EX_MASK)) == 0))
                return true;
        }
        // Check Extra Requirement like (hit/crit/miss/resist/parry/dodge/block/immune/reflect/absorb and other)
        if (procEvent_procEx & procExtra)
            return true;
    }
    return false;
}

void SpellMgr::LoadSpellGroups ()
{
    uint32 oldMSTime = getMSTime();

    mSpellSpellGroup.clear();          // need for reload case
    mSpellGroupSpell.clear();

    uint32 count = 0;

    //                                                       0   1
    QueryResult result = WorldDatabase.Query("SELECT id, spell_id FROM spell_group");
    if (!result)
    {
        sLog->outString();
        sLog->outString(">> Loaded %u spell group definitions", count);
        return;
    }

    std::set<uint32> groups;

    do
    {
        Field *fields = result->Fetch();

        uint32 group_id = fields[0].GetUInt32();
        if (group_id <= SPELL_GROUP_DB_RANGE_MIN && group_id >= SPELL_GROUP_CORE_RANGE_MAX)
        {
            sLog->outErrorDb("SpellGroup id %u listed in `spell_groups` is in core range, but is not defined in core!", group_id);
            continue;
        }
        int32 spell_id = fields[1].GetInt32();

        groups.insert(std::set < uint32 > ::value_type(group_id));
        mSpellGroupSpell.insert(SpellGroupSpellMap::value_type((SpellGroup) group_id, spell_id));
    }
    while (result->NextRow());

    for (SpellGroupSpellMap::iterator itr = mSpellGroupSpell.begin(); itr != mSpellGroupSpell.end();)
    {
        if (itr->second < 0)
        {
            if (groups.find(abs(itr->second)) == groups.end())
            {
                sLog->outErrorDb("SpellGroup id %u listed in `spell_groups` does not exist", abs(itr->second));
                mSpellGroupSpell.erase(itr++);
            }
            else
                ++itr;
        }
        else
        {
            SpellEntry const* spellInfo = sSpellStore.LookupEntry(itr->second);

            if (!spellInfo)
            {
                sLog->outErrorDb("Spell %u listed in `spell_group` does not exist", itr->second);
                mSpellGroupSpell.erase(itr++);
            }
            else if (GetSpellRank(itr->second) > 1)
            {
                sLog->outErrorDb("Spell %u listed in `spell_group` is not first rank of spell", itr->second);
                mSpellGroupSpell.erase(itr++);
            }
            else
                ++itr;
        }
    }

    for (std::set<uint32>::iterator groupItr = groups.begin(); groupItr != groups.end(); ++groupItr)
    {
        std::set<uint32> spells;
        GetSetOfSpellsInSpellGroup(SpellGroup(*groupItr), spells);

        for (std::set<uint32>::iterator spellItr = spells.begin(); spellItr != spells.end(); ++spellItr)
        {
            count++;
            mSpellSpellGroup.insert(SpellSpellGroupMap::value_type(*spellItr, SpellGroup(*groupItr)));
        }
    }

    sLog->outString(">> Loaded %u spell group definitions in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellGroupStackRules ()
{
    uint32 oldMSTime = getMSTime();

    mSpellGroupStack.clear();          // need for reload case

    //                                                       0         1
    QueryResult result = WorldDatabase.Query("SELECT group_id, stack_rule FROM spell_group_stack_rules");
    if (!result)
    {
        sLog->outString(">> Loaded 0 spell group stack rules");
        sLog->outString();
        return;
    }

    uint32 count = 0;

    do
    {
        Field *fields = result->Fetch();

        uint32 group_id = fields[0].GetUInt32();
        uint8 stack_rule = fields[1].GetUInt32();
        if (stack_rule >= SPELL_GROUP_STACK_RULE_MAX)
        {
            sLog->outErrorDb("SpellGroupStackRule %u listed in `spell_group_stack_rules` does not exist", stack_rule);
            continue;
        }

        SpellGroupSpellMapBounds spellGroup = GetSpellGroupSpellMapBounds((SpellGroup) group_id);

        if (spellGroup.first == spellGroup.second)
        {
            sLog->outErrorDb("SpellGroup id %u listed in `spell_group_stack_rules` does not exist", group_id);
            continue;
        }

        mSpellGroupStack[(SpellGroup) group_id] = (SpellGroupStackRule) stack_rule;

        count++;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u spell group stack rules in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellThreats ()
{
    uint32 oldMSTime = getMSTime();

    mSpellThreatMap.clear();          // need for reload case

    //                                                0      1
    QueryResult result = WorldDatabase.Query("SELECT entry, Threat FROM spell_threat");
    if (!result)
    {
        sLog->outString(">> Loaded 0 aggro generating spells");
        sLog->outString();
        return;
    }

    uint32 count = 0;

    do
    {
        Field *fields = result->Fetch();

        uint32 entry = fields[0].GetUInt32();
        uint16 Threat = fields[1].GetUInt16();

        if (!sSpellStore.LookupEntry(entry))
        {
            sLog->outErrorDb("Spell %u listed in `spell_threat` does not exist", entry);
            continue;
        }

        mSpellThreatMap[entry] = Threat;

        count++;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u aggro generating spells in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

bool SpellMgr::IsRankSpellDueToSpell (SpellEntry const *spellInfo_1, uint32 spellId_2) const
{
    SpellEntry const *spellInfo_2 = sSpellStore.LookupEntry(spellId_2);
    if (!spellInfo_1 || !spellInfo_2)
        return false;
    if (spellInfo_1->Id == spellId_2)
        return false;

    return GetFirstSpellInChain(spellInfo_1->Id) == GetFirstSpellInChain(spellId_2);
}

bool SpellMgr::canStackSpellRanks (SpellEntry const *spellInfo)
{
    if (IsPassiveSpell(spellInfo->Id))          // ranked passive spell
        return false;
    if (spellInfo->powerType != POWER_MANA && spellInfo->powerType != POWER_HEALTH)
        return false;
    if (IsProfessionOrRidingSpell(spellInfo->Id))
        return false;

    if (sSpellMgr->IsSkillBonusSpell(spellInfo->Id))
        return false;

    // All stance spells. if any better way, change it.
    for (int i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        switch (spellInfo->SpellFamilyName)
        {
        case SPELLFAMILY_PALADIN:
            // Paladin aura Spell
            if (spellInfo->Effect[i] == SPELL_EFFECT_APPLY_AREA_AURA_RAID)
                return false;
            break;
        case SPELLFAMILY_DRUID:
            // Druid form Spell
            if (spellInfo->Effect[i] == SPELL_EFFECT_APPLY_AURA && spellInfo->EffectApplyAuraName[i] == SPELL_AURA_MOD_SHAPESHIFT)
                return false;
            break;
        case SPELLFAMILY_ROGUE:
            // Rogue Stealth
            if (spellInfo->Effect[i] == SPELL_EFFECT_APPLY_AURA && spellInfo->EffectApplyAuraName[i] == SPELL_AURA_MOD_SHAPESHIFT)
                return false;
        }
    }
    return true;
}

bool SpellMgr::IsProfessionOrRidingSpell (uint32 spellId)
{
    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId);
    if (!spellInfo)
        return false;

    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (spellInfo->Effect[i] == SPELL_EFFECT_SKILL)
        {
            uint32 skill = spellInfo->EffectMiscValue[i];

            bool found = IsProfessionOrRidingSkill(skill);
            if (found)
                return true;
        }
    }
    return false;
}

bool SpellMgr::IsProfessionSpell (uint32 spellId)
{
    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId);
    if (!spellInfo)
        return false;

    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (spellInfo->Effect[i] == SPELL_EFFECT_SKILL)
        {
            uint32 skill = spellInfo->EffectMiscValue[i];

            bool found = IsProfessionSkill(skill);
            if (found)
                return true;
        }
    }
    return false;
}

bool SpellMgr::IsPrimaryProfessionSpell (uint32 spellId)
{
    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId);
    if (!spellInfo)
        return false;

    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (spellInfo->Effect[i] == SPELL_EFFECT_SKILL)
        {
            uint32 skill = spellInfo->EffectMiscValue[i];

            bool found = IsPrimaryProfessionSkill(skill);
            if (found)
                return true;
        }
    }
    return false;
}

bool SpellMgr::IsPrimaryProfessionFirstRankSpell (uint32 spellId) const
{
    return IsPrimaryProfessionSpell(spellId) && GetSpellRank(spellId) == 1;
}

bool SpellMgr::IsSkillBonusSpell (uint32 spellId) const
{
    SkillLineAbilityMapBounds bounds = GetSkillLineAbilityMapBounds(spellId);

    for (SkillLineAbilityMap::const_iterator _spell_idx = bounds.first; _spell_idx != bounds.second; ++_spell_idx)
    {
        SkillLineAbilityEntry const *pAbility = _spell_idx->second;
        if (!pAbility || pAbility->learnOnGetSkill != ABILITY_LEARNED_ON_GET_PROFESSION_SKILL)
            continue;

        if (pAbility->req_skill_value > 0)
            return true;
    }

    return false;
}

bool SpellMgr::IsSkillTypeSpell (uint32 spellId, SkillType type) const
{
    SkillLineAbilityMapBounds bounds = GetSkillLineAbilityMapBounds(spellId);

    for (SkillLineAbilityMap::const_iterator _spell_idx = bounds.first; _spell_idx != bounds.second; ++_spell_idx)
        if (_spell_idx->second->skillId == uint32(type))
            return true;

    return false;
}

// basepoints provided here have to be valid basepoints (use SpellMgr::CalculateSpellEffectBaseAmount)
int32 SpellMgr::CalculateSpellEffectAmount (SpellEntry const * spellEntry, uint8 effIndex, Unit const * caster, int32 const * effBasePoints, Unit const * /*target*/)
{
    float basePointsPerLevel = spellEntry->EffectRealPointsPerLevel[effIndex];
    int32 basePoints = effBasePoints ? *effBasePoints : spellEntry->EffectBasePoints[effIndex];
    int32 randomPoints = int32(spellEntry->EffectDieSides[effIndex]);

    float maxPoints = 0.00f;
    float comboPointScaling = 0.00f;
    if (caster)
    {
        SpellScaling values(caster->getLevel(), spellEntry);
        if (values.canScale && (int32) values.min[effIndex] != 0)
        {
            basePoints = (int32) values.min[effIndex];
            maxPoints = values.max[effIndex];
            comboPointScaling = values.pts[effIndex];
        }
        else
        {
            int32 level = int32(caster->getLevel());
            if (level > int32(spellEntry->maxLevel) && spellEntry->maxLevel > 0)
                level = int32(spellEntry->maxLevel);
            else if (level < int32(spellEntry->baseLevel))
                level = int32(spellEntry->baseLevel);
            level -= int32(spellEntry->spellLevel);
            basePoints += int32(level * basePointsPerLevel);
        }
    }

    if (maxPoints != 0.00f)
        basePoints = irand(basePoints, (int32) maxPoints);
    else
    {
        // not sure for Cataclysm.
        // roll in a range <1;EffectDieSides> as of patch 3.3.3
        switch (randomPoints)
        {
        case 0:
            break;
        case 1:
            basePoints += 1;
            break;          // range 1..1
        default:
            // range can have positive (1..rand) and negative (rand..1) values, so order its for irand
            int32 randvalue = (randomPoints >= 1) ? irand(1, randomPoints) : irand(randomPoints, 1);

            basePoints += randvalue;
            break;
        }
    }
    int32 value = basePoints;

    // random damage
    if (caster)
    {
        // bonus amount from combo points
        if (caster->m_movedPlayer)
        {
            if (uint8 comboPoints = caster->m_movedPlayer->GetComboPoints())
            {
                if (float comboDamage = spellEntry->EffectPointsPerComboPoint[effIndex])
                {
                    if (comboPointScaling != 0.00f)
                        comboDamage = comboPointScaling;

                    value += int32(comboDamage * comboPoints);
                }
            }
        }

        value = caster->ApplyEffectModifiers(spellEntry, effIndex, value);

        // amount multiplication based on caster's level
        if (!basePointsPerLevel && (spellEntry->Attributes & SPELL_ATTR0_LEVEL_DAMAGE_CALCULATION && spellEntry->spellLevel) && spellEntry->Effect[effIndex] != SPELL_EFFECT_WEAPON_PERCENT_DAMAGE && spellEntry->Effect[effIndex] != SPELL_EFFECT_KNOCK_BACK && spellEntry->EffectApplyAuraName[effIndex] != SPELL_AURA_MOD_SPEED_ALWAYS && spellEntry->EffectApplyAuraName[effIndex] != SPELL_AURA_MOD_SPEED_NOT_STACK && spellEntry->EffectApplyAuraName[effIndex] != SPELL_AURA_MOD_INCREASE_SPEED && spellEntry->EffectApplyAuraName[effIndex] != SPELL_AURA_MOD_DECREASE_SPEED)
            //there are many more: slow speed, -healing pct
            value = int32(value * 0.25f * exp(caster->getLevel() * (70 - spellEntry->spellLevel) / 1000.0f));
        //value = int32(value * (int32)getLevel() / (int32)(spellProto->spellLevel ? spellProto->spellLevel : 1));
    }

    return value;
}

int32 SpellMgr::CalculateSpellEffectBaseAmount (int32 value, SpellEntry const * spellEntry, uint8 effIndex)
{
    if (spellEntry->EffectDieSides[effIndex] == 0)
        return value;
    else
        return value - 1;
}

float SpellMgr::CalculateSpellEffectValueMultiplier (SpellEntry const * spellEntry, uint8 effIndex, Unit * caster, Spell * spell)
{
    float multiplier = spellEntry->EffectValueMultiplier[effIndex];

    if (caster)
        if (Player * modOwner = caster->GetSpellModOwner())
            modOwner->ApplySpellMod(spellEntry->Id, SPELLMOD_VALUE_MULTIPLIER, multiplier, spell);
    return multiplier;
}

float SpellMgr::CalculateSpellEffectDamageMultiplier (SpellEntry const * spellEntry, uint8 effIndex, Unit * caster, Spell * spell)
{
    float multiplier = spellEntry->EffectDamageMultiplier[effIndex];

    if (caster)
        if (Player * modOwner = caster->GetSpellModOwner())
            modOwner->ApplySpellMod(spellEntry->Id, SPELLMOD_DAMAGE_MULTIPLIER, multiplier, spell);
    return multiplier;
}

SpellEntry const* SpellMgr::SelectAuraRankForPlayerLevel (SpellEntry const* spellInfo, uint32 playerLevel) const
{
    // ignore passive spells
    if (IsPassiveSpell(spellInfo->Id))
        return spellInfo;

    bool needRankSelection = false;
    for (int i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (IsPositiveEffect(spellInfo->Id, i) && (spellInfo->Effect[i] == SPELL_EFFECT_APPLY_AURA || spellInfo->Effect[i] == SPELL_EFFECT_APPLY_AREA_AURA_PARTY || spellInfo->Effect[i] == SPELL_EFFECT_APPLY_AREA_AURA_RAID))
        {
            needRankSelection = true;
            break;
        }
    }

    // not required
    if (!needRankSelection)
        return spellInfo;

    for (uint32 nextSpellId = spellInfo->Id; nextSpellId != 0; nextSpellId = GetPrevSpellInChain(nextSpellId))
    {
        SpellEntry const *nextSpellInfo = sSpellStore.LookupEntry(nextSpellId);
        if (!nextSpellInfo)
            break;

        // if found appropriate level
        if (playerLevel + 10 >= nextSpellInfo->spellLevel)
            return nextSpellInfo;

        // one rank less then
    }

    // not found
    return NULL;
}

void SpellMgr::LoadSpellLearnSkills ()
{
    uint32 oldMSTime = getMSTime();

    mSpellLearnSkills.clear();          // need for reload case

    // search auto-learned skills and add its to map also for use in unlearn spells/talents
    uint32 dbc_count = 0;

    for (uint32 spell = 0; spell < sSpellStore.GetNumRows(); ++spell)
    {
        SpellEntry const* entry = sSpellStore.LookupEntry(spell);

        if (!entry)
            continue;

        for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
        {
            if (entry->Effect[i] == SPELL_EFFECT_SKILL)
            {
                SpellLearnSkillNode dbc_node;
                dbc_node.skill = entry->EffectMiscValue[i];
                dbc_node.step = SpellMgr::CalculateSpellEffectAmount(entry, i);
                if (dbc_node.skill != SKILL_RIDING)
                    dbc_node.value = 1;
                else
                    dbc_node.value = dbc_node.step * 75;
                dbc_node.maxvalue = dbc_node.step * 75;
                mSpellLearnSkills[spell] = dbc_node;
                ++dbc_count;
                break;
            }
        }
    }

    sLog->outString(">> Loaded %u Spell Learn Skills from DBC in %u ms", dbc_count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellLearnSpells ()
{
    uint32 oldMSTime = getMSTime();

    mSpellLearnSpells.clear();          // need for reload case

    //                                                  0      1        2
    QueryResult result = WorldDatabase.Query("SELECT entry, SpellID, Active FROM spell_learn_spell");
    if (!result)
    {
        sLog->outString();
        sLog->outString(">> Loaded 0 spell learn spells");
        sLog->outErrorDb("`spell_learn_spell` table is empty!");
        return;
    }

    uint32 count = 0;

    do
    {
        Field *fields = result->Fetch();

        uint32 spell_id = fields[0].GetUInt32();

        SpellLearnSpellNode node;
        node.spell = fields[1].GetUInt32();
        node.active = fields[2].GetBool();
        node.autoLearned = false;

        if (!sSpellStore.LookupEntry(spell_id))
        {
            sLog->outErrorDb("Spell %u listed in `spell_learn_spell` does not exist", spell_id);
            continue;
        }

        if (!sSpellStore.LookupEntry(node.spell))
        {
            sLog->outErrorDb("Spell %u listed in `spell_learn_spell` learning not existed spell %u", spell_id, node.spell);
            continue;
        }

        if (GetTalentSpellCost(node.spell))
        {
            sLog->outErrorDb("Spell %u listed in `spell_learn_spell` attempt learning talent spell %u, skipped", spell_id, node.spell);
            continue;
        }

        mSpellLearnSpells.insert(SpellLearnSpellMap::value_type(spell_id, node));

        count++;
    }
    while (result->NextRow());

    // search auto-learned spells and add its to map also for use in unlearn spells/talents
    uint32 dbc_count = 0;
    for (uint32 spell = 0; spell < sSpellStore.GetNumRows(); ++spell)
    {
        SpellEntry const* entry = sSpellStore.LookupEntry(spell);

        if (!entry)
            continue;

        for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
        {
            if (entry->Effect[i] == SPELL_EFFECT_LEARN_SPELL)
            {
                SpellLearnSpellNode dbc_node;
                dbc_node.spell = entry->EffectTriggerSpell[i];
                dbc_node.active = true;          // all dbc based learned spells is active (show in spell book or hide by client itself)

                // ignore learning not existed spells (broken/outdated/or generic learnig spell 483
                if (!sSpellStore.LookupEntry(dbc_node.spell))
                    continue;

                // talent or passive spells or skill-step spells auto-casted and not need dependent learning,
                // pet teaching spells don't must be dependent learning (casted)
                // other required explicit dependent learning
                dbc_node.autoLearned = entry->EffectImplicitTargetA[i] == TARGET_UNIT_PET || GetTalentSpellCost(spell) > 0 || IsPassiveSpell(spell) || IsSpellHaveEffect(entry, SPELL_EFFECT_SKILL_STEP);

                SpellLearnSpellMapBounds db_node_bounds = GetSpellLearnSpellMapBounds(spell);

                bool found = false;
                for (SpellLearnSpellMap::const_iterator itr = db_node_bounds.first; itr != db_node_bounds.second; ++itr)
                {
                    if (itr->second.spell == dbc_node.spell)
                    {
                        sLog->outErrorDb("Spell %u auto-learn spell %u in spell.dbc then the record in `spell_learn_spell` is redundant, please fix DB.", spell, dbc_node.spell);
                        found = true;
                        break;
                    }
                }

                if (!found)          // add new spell-spell pair if not found
                {
                    mSpellLearnSpells.insert(SpellLearnSpellMap::value_type(spell, dbc_node));
                    ++dbc_count;
                }
            }
        }
    }

    sLog->outString(">> Loaded %u spell learn spells + %u found in DBC in %u ms", count, dbc_count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellPetAuras ()
{
    uint32 oldMSTime = getMSTime();

    mSpellPetAuraMap.clear();          // need for reload case

    //                                                  0       1       2    3
    QueryResult result = WorldDatabase.Query("SELECT spell, effectId, pet, aura FROM spell_pet_auras");
    if (!result)
    {
        sLog->outString(">> Loaded 0 spell pet auras. DB table `spell_pet_auras` is empty.");
        sLog->outString();
        return;
    }

    uint32 count = 0;

    do
    {
        Field *fields = result->Fetch();

        uint32 spell = fields[0].GetUInt32();
        uint8 eff = fields[1].GetUInt8();
        uint32 pet = fields[2].GetUInt32();
        uint32 aura = fields[3].GetUInt32();

        SpellPetAuraMap::iterator itr = mSpellPetAuraMap.find((spell << 8) + eff);
        if (itr != mSpellPetAuraMap.end())
            itr->second.AddAura(pet, aura);
        else
        {
            SpellEntry const* spellInfo = sSpellStore.LookupEntry(spell);
            if (!spellInfo)
            {
                sLog->outErrorDb("Spell %u listed in `spell_pet_auras` does not exist", spell);
                continue;
            }
            if (spellInfo->Effect[eff] != SPELL_EFFECT_DUMMY && (spellInfo->Effect[eff] != SPELL_EFFECT_APPLY_AURA || spellInfo->EffectApplyAuraName[eff] != SPELL_AURA_DUMMY))
            {
                sLog->outError("Spell %u listed in `spell_pet_auras` does not have dummy aura or dummy effect", spell);
                continue;
            }

            SpellEntry const* spellInfo2 = sSpellStore.LookupEntry(aura);
            if (!spellInfo2)
            {
                sLog->outErrorDb("Aura %u listed in `spell_pet_auras` does not exist", aura);
                continue;
            }

            PetAura pa(pet, aura, spellInfo->EffectImplicitTargetA[eff] == TARGET_UNIT_PET, SpellMgr::CalculateSpellEffectAmount(spellInfo, eff));
            mSpellPetAuraMap[(spell << 8) + eff] = pa;
        }

        count++;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u spell pet auras in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadPetLevelupSpellMap ()
{
    uint32 oldMSTime = getMSTime();

    mPetLevelupSpellMap.clear();          // need for reload case

    uint32 count = 0;
    uint32 family_count = 0;

    for (uint32 i = 0; i < sCreatureFamilyStore.GetNumRows(); ++i)
    {
        CreatureFamilyEntry const *creatureFamily = sCreatureFamilyStore.LookupEntry(i);
        if (!creatureFamily)          // not exist
            continue;

        for (uint8 j = 0; j < 2; ++j)
        {
            if (!creatureFamily->skillLine[j])
                continue;

            for (uint32 k = 0; k < sSkillLineAbilityStore.GetNumRows(); ++k)
            {
                SkillLineAbilityEntry const *skillLine = sSkillLineAbilityStore.LookupEntry(k);
                if (!skillLine)
                    continue;

                //if (skillLine->skillId != creatureFamily->skillLine[0] &&
                //    (!creatureFamily->skillLine[1] || skillLine->skillId != creatureFamily->skillLine[1]))
                //    continue;

                if (skillLine->skillId != creatureFamily->skillLine[j])
                    continue;

                if (skillLine->learnOnGetSkill != ABILITY_LEARNED_ON_GET_RACE_OR_CLASS_SKILL)
                    continue;

                SpellEntry const *spell = sSpellStore.LookupEntry(skillLine->spellId);
                if (!spell)          // not exist or triggered or talent
                    continue;

                if (!spell->spellLevel)
                    continue;

                PetLevelupSpellSet& spellSet = mPetLevelupSpellMap[creatureFamily->ID];
                if (spellSet.empty())
                    ++family_count;

                spellSet.insert(PetLevelupSpellSet::value_type(spell->spellLevel, spell->Id));
                count++;
            }
        }
    }

    sLog->outString(">> Loaded %u pet levelup and default spells for %u families in %u ms", count, family_count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

bool LoadPetDefaultSpells_helper (CreatureInfo const* cInfo, PetDefaultSpellsEntry& petDefSpells)
{
    // skip empty list;
    bool have_spell = false;
    for (uint8 j = 0; j < MAX_CREATURE_SPELL_DATA_SLOT; ++j)
    {
        if (petDefSpells.spellid[j])
        {
            have_spell = true;
            break;
        }
    }
    if (!have_spell)
        return false;

    // remove duplicates with levelupSpells if any
    if (PetLevelupSpellSet const *levelupSpells = cInfo->family ? sSpellMgr->GetPetLevelupSpellList(cInfo->family) : NULL)
    {
        for (uint8 j = 0; j < MAX_CREATURE_SPELL_DATA_SLOT; ++j)
        {
            if (!petDefSpells.spellid[j])
                continue;

            for (PetLevelupSpellSet::const_iterator itr = levelupSpells->begin(); itr != levelupSpells->end(); ++itr)
            {
                if (itr->second == petDefSpells.spellid[j])
                {
                    petDefSpells.spellid[j] = 0;
                    break;
                }
            }
        }
    }

    // skip empty list;
    have_spell = false;
    for (uint8 j = 0; j < MAX_CREATURE_SPELL_DATA_SLOT; ++j)
    {
        if (petDefSpells.spellid[j])
        {
            have_spell = true;
            break;
        }
    }

    return have_spell;
}

void SpellMgr::LoadPetDefaultSpells ()
{
    uint32 oldMSTime = getMSTime();

    mPetDefaultSpellsMap.clear();

    uint32 countCreature = 0;
    uint32 countData = 0;

    for (uint32 i = 0; i < sCreatureStorage.MaxEntry; ++i)
    {
        CreatureInfo const* cInfo = sCreatureStorage.LookupEntry<CreatureInfo>(i);
        if (!cInfo)
            continue;

        if (!cInfo->PetSpellDataId)
            continue;

        // for creature with PetSpellDataId get default pet spells from dbc
        CreatureSpellDataEntry const* spellDataEntry = sCreatureSpellDataStore.LookupEntry(cInfo->PetSpellDataId);
        if (!spellDataEntry)
            continue;

        int32 petSpellsId = -int32(cInfo->PetSpellDataId);
        PetDefaultSpellsEntry petDefSpells;
        for (uint8 j = 0; j < MAX_CREATURE_SPELL_DATA_SLOT; ++j)
            petDefSpells.spellid[j] = spellDataEntry->spellId[j];

        if (LoadPetDefaultSpells_helper(cInfo, petDefSpells))
        {
            mPetDefaultSpellsMap[petSpellsId] = petDefSpells;
            ++countData;
        }
    }

    sLog->outString(">> Loaded addition spells for %u pet spell data entries in %u ms", countData, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();

    sLog->outString("Loading summonable creature templates...");
    oldMSTime = getMSTime();

    // different summon spells
    for (uint32 i = 0; i < sSpellStore.GetNumRows(); ++i)
    {
        SpellEntry const* spellEntry = sSpellStore.LookupEntry(i);
        if (!spellEntry)
            continue;

        for (uint8 k = 0; k < MAX_SPELL_EFFECTS; ++k)
        {
            if (spellEntry->Effect[k] == SPELL_EFFECT_SUMMON || spellEntry->Effect[k] == SPELL_EFFECT_SUMMON_PET)
            {
                uint32 creature_id = spellEntry->EffectMiscValue[k];
                CreatureInfo const *cInfo = sCreatureStorage.LookupEntry<CreatureInfo>(creature_id);
                if (!cInfo)
                    continue;

                // already loaded
                if (cInfo->PetSpellDataId)
                    continue;

                // for creature without PetSpellDataId get default pet spells from creature_template
                int32 petSpellsId = cInfo->Entry;
                if (mPetDefaultSpellsMap.find(cInfo->Entry) != mPetDefaultSpellsMap.end())
                    continue;

                PetDefaultSpellsEntry petDefSpells;
                for (uint8 j = 0; j < MAX_CREATURE_SPELL_DATA_SLOT; ++j)
                    petDefSpells.spellid[j] = cInfo->spells[j];

                if (LoadPetDefaultSpells_helper(cInfo, petDefSpells))
                {
                    mPetDefaultSpellsMap[petSpellsId] = petDefSpells;
                    ++countCreature;
                }
            }
        }
    }

    sLog->outString(">> Loaded %u summonable creature templates in %u ms", countCreature, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

/// Some checks for spells, to prevent adding deprecated/broken spells for trainers, spell book, etc
bool SpellMgr::IsSpellValid (SpellEntry const *spellInfo, Player *pl, bool msg)
{
    // not exist
    if (!spellInfo)
        return false;

    bool need_check_reagents = false;

    // check effects
    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        switch (spellInfo->Effect[i])
        {
        case 0:
            continue;

            // craft spell for crafting non-existed item (break client recipes list show)
        case SPELL_EFFECT_CREATE_ITEM:
        case SPELL_EFFECT_CREATE_ITEM_2:
        {
            if (spellInfo->EffectItemType[i] == 0)
            {
                // skip auto-loot crafting spells, its not need explicit item info (but have special fake items sometime)
                if (!IsLootCraftingSpell(spellInfo))
                {
                    if (msg)
                    {
                        if (pl)
                            ChatHandler(pl).PSendSysMessage("Craft spell %u not have create item entry.", spellInfo->Id);
                        else
                            sLog->outErrorDb("Craft spell %u not have create item entry.", spellInfo->Id);
                    }
                    return false;
                }
            }
            // also possible IsLootCraftingSpell case but fake item must exist anyway
            else if (!ObjectMgr::GetItemPrototype(spellInfo->EffectItemType[i]))
            {
                if (msg)
                {
                    if (pl)
                        ChatHandler(pl).PSendSysMessage("Craft spell %u create not-exist in DB item (Entry: %u) and then...", spellInfo->Id, spellInfo->EffectItemType[i]);
                    else
                        sLog->outErrorDb("Craft spell %u create not-exist in DB item (Entry: %u) and then...", spellInfo->Id, spellInfo->EffectItemType[i]);
                }
                return false;
            }

            need_check_reagents = true;
            break;
        }
        case SPELL_EFFECT_LEARN_SPELL:
        {
            SpellEntry const *spellInfo2 = sSpellStore.LookupEntry(spellInfo->EffectTriggerSpell[i]);
            if (!IsSpellValid(spellInfo2, pl, msg))
            {
                if (msg)
                {
                    if (pl)
                        ChatHandler(pl).PSendSysMessage("Spell %u learn to broken spell %u, and then...", spellInfo->Id, spellInfo->EffectTriggerSpell[i]);
                    else
                        sLog->outErrorDb("Spell %u learn to invalid spell %u, and then...", spellInfo->Id, spellInfo->EffectTriggerSpell[i]);
                }
                return false;
            }
            break;
        }
        }
    }

    if (need_check_reagents)
    {
        for (uint8 j = 0; j < MAX_SPELL_REAGENTS; ++j)
        {
            if (spellInfo->Reagent[j] > 0 && !ObjectMgr::GetItemPrototype(spellInfo->Reagent[j]))
            {
                if (msg)
                {
                    if (pl)
                        ChatHandler(pl).PSendSysMessage("Craft spell %u have not-exist reagent in DB item (Entry: %u) and then...", spellInfo->Id, spellInfo->Reagent[j]);
                    else
                        sLog->outErrorDb("Craft spell %u have not-exist reagent in DB item (Entry: %u) and then...", spellInfo->Id, spellInfo->Reagent[j]);
                }
                return false;
            }
        }
    }

    return true;
}

uint32 SpellMgr::GetSpellDifficultyId (uint32 spellId) const
{
    SpellDifficultySearcherMap::const_iterator i = mSpellDifficultySearcherMap.find(spellId);
    return i == mSpellDifficultySearcherMap.end() ? 0 : (*i).second;
}

void SpellMgr::SetSpellDifficultyId (uint32 spellId, uint32 id)
{
    mSpellDifficultySearcherMap[spellId] = id;
}

uint32 SpellMgr::GetSpellIdForDifficulty (uint32 spellId, Unit const* caster) const
{
    // if (!GetSpellInfo(spellId))
    //   return spellId;

    if (!caster || !caster->GetMap() || !caster->GetMap()->IsDungeon())
        return spellId;

    uint32 mode = uint32(caster->GetMap()->GetSpawnMode());
    if (mode >= MAX_DIFFICULTY)
    {
        sLog->outError("SpellMgr::GetSpellIdForDifficulty: Incorrect Difficulty for spell %u.", spellId);
        return spellId;          //return source spell
    }

    uint32 difficultyId = GetSpellDifficultyId(spellId);
    if (!difficultyId)
        return spellId;          //return source spell, it has only REGULAR_DIFFICULTY

    SpellDifficultyEntry const* difficultyEntry = sSpellDifficultyStore.LookupEntry(difficultyId);
    if (!difficultyEntry)
    {
        sLog->outDebug(LOG_FILTER_SPELLS_AURAS, "SpellMgr::GetSpellIdForDifficulty: SpellDifficultyEntry not found for spell %u. This should never happen.", spellId);
        return spellId;          //return source spell
    }

    if (difficultyEntry->SpellID[mode] <= 0 && mode > DUNGEON_DIFFICULTY_HEROIC)
    {
        sLog->outDebug(LOG_FILTER_SPELLS_AURAS, "SpellMgr::GetSpellIdForDifficulty: spell %u mode %u spell is NULL, using mode %u", spellId, mode, mode - 2);
        mode -= 2;
    }

    if (difficultyEntry->SpellID[mode] <= 0)
    {
        sLog->outErrorDb("SpellMgr::GetSpellIdForDifficulty: spell %u mode %u spell is 0. Check spelldifficulty_dbc!", spellId, mode);
        return spellId;
    }

    sLog->outDebug(LOG_FILTER_SPELLS_AURAS, "SpellMgr::GetSpellIdForDifficulty: spellid for spell %u in mode %u is %d", spellId, mode, difficultyEntry->SpellID[mode]);
    return uint32(difficultyEntry->SpellID[mode]);
}

void SpellMgr::LoadSpellAreas ()
{
    uint32 oldMSTime = getMSTime();

    mSpellAreaMap.clear();          // need for reload case
    mSpellAreaForQuestMap.clear();
    mSpellAreaForActiveQuestMap.clear();
    mSpellAreaForQuestEndMap.clear();
    mSpellAreaForAuraMap.clear();

    //                                                  0     1         2              3               4           5          6        7       8
    QueryResult result = WorldDatabase.Query("SELECT spell, area, quest_start, quest_start_active, quest_end, aura_spell, racemask, gender, autocast FROM spell_area");

    if (!result)
    {
        sLog->outString(">> Loaded 0 spell area requirements. DB table `spell_area` is empty.");
        sLog->outString();
        return;
    }

    uint32 count = 0;

    do
    {
        Field *fields = result->Fetch();

        uint32 spell = fields[0].GetUInt32();
        SpellArea spellArea;
        spellArea.spellId = spell;
        spellArea.areaId = fields[1].GetUInt32();
        spellArea.questStart = fields[2].GetUInt32();
        spellArea.questStartCanActive = fields[3].GetBool();
        spellArea.questEnd = fields[4].GetUInt32();
        spellArea.auraSpell = fields[5].GetInt32();
        spellArea.raceMask = fields[6].GetUInt32();
        spellArea.gender = Gender(fields[7].GetUInt8());
        spellArea.autocast = fields[8].GetBool();

        if (const SpellEntry* spellInfo = sSpellStore.LookupEntry(spell))
        {
            if (spellArea.autocast)
                const_cast<SpellEntry*>(spellInfo)->Attributes |= SPELL_ATTR0_CANT_CANCEL;
        }
        else
        {
            sLog->outErrorDb("Spell %u listed in `spell_area` does not exist", spell);
            continue;
        }

        {
            bool ok = true;
            SpellAreaMapBounds sa_bounds = GetSpellAreaMapBounds(spellArea.spellId);
            for (SpellAreaMap::const_iterator itr = sa_bounds.first; itr != sa_bounds.second; ++itr)
            {
                if (spellArea.spellId != itr->second.spellId)
                    continue;
                if (spellArea.areaId != itr->second.areaId)
                    continue;
                if (spellArea.questStart != itr->second.questStart)
                    continue;
                if (spellArea.auraSpell != itr->second.auraSpell)
                    continue;
                if ((spellArea.raceMask & itr->second.raceMask) == 0)
                    continue;
                if (spellArea.gender != itr->second.gender)
                    continue;

                // duplicate by requirements
                ok = false;
                break;
            }

            if (!ok)
            {
                sLog->outErrorDb("Spell %u listed in `spell_area` already listed with similar requirements.", spell);
                continue;
            }
        }

        if (spellArea.areaId && !GetAreaEntryByAreaID(spellArea.areaId))
        {
            sLog->outErrorDb("Spell %u listed in `spell_area` have wrong area (%u) requirement", spell, spellArea.areaId);
            continue;
        }

        if (spellArea.questStart && !sObjectMgr->GetQuestTemplate(spellArea.questStart))
        {
            sLog->outErrorDb("Spell %u listed in `spell_area` have wrong start quest (%u) requirement", spell, spellArea.questStart);
            continue;
        }

        if (spellArea.questEnd)
        {
            if (!sObjectMgr->GetQuestTemplate(spellArea.questEnd))
            {
                sLog->outErrorDb("Spell %u listed in `spell_area` have wrong end quest (%u) requirement", spell, spellArea.questEnd);
                continue;
            }

            if (spellArea.questEnd == spellArea.questStart && !spellArea.questStartCanActive)
            {
                sLog->outErrorDb("Spell %u listed in `spell_area` have quest (%u) requirement for start and end in same time", spell, spellArea.questEnd);
                continue;
            }
        }

        if (spellArea.auraSpell)
        {
            SpellEntry const* spellInfo = sSpellStore.LookupEntry(abs(spellArea.auraSpell));
            if (!spellInfo)
            {
                sLog->outErrorDb("Spell %u listed in `spell_area` have wrong aura spell (%u) requirement", spell, abs(spellArea.auraSpell));
                continue;
            }

            if (uint32(abs(spellArea.auraSpell)) == spellArea.spellId)
            {
                sLog->outErrorDb("Spell %u listed in `spell_area` have aura spell (%u) requirement for itself", spell, abs(spellArea.auraSpell));
                continue;
            }

            // not allow autocast chains by auraSpell field (but allow use as alternative if not present)
            if (spellArea.autocast && spellArea.auraSpell > 0)
            {
                bool chain = false;
                SpellAreaForAuraMapBounds saBound = GetSpellAreaForAuraMapBounds(spellArea.spellId);
                for (SpellAreaForAuraMap::const_iterator itr = saBound.first; itr != saBound.second; ++itr)
                {
                    if (itr->second->autocast && itr->second->auraSpell > 0)
                    {
                        chain = true;
                        break;
                    }
                }

                if (chain)
                {
                    sLog->outErrorDb("Spell %u listed in `spell_area` have aura spell (%u) requirement that itself autocast from aura", spell, spellArea.auraSpell);
                    continue;
                }

                SpellAreaMapBounds saBound2 = GetSpellAreaMapBounds(spellArea.auraSpell);
                for (SpellAreaMap::const_iterator itr2 = saBound2.first; itr2 != saBound2.second; ++itr2)
                {
                    if (itr2->second.autocast && itr2->second.auraSpell > 0)
                    {
                        chain = true;
                        break;
                    }
                }

                if (chain)
                {
                    sLog->outErrorDb("Spell %u listed in `spell_area` have aura spell (%u) requirement that itself autocast from aura", spell, spellArea.auraSpell);
                    continue;
                }
            }
        }

        if (spellArea.raceMask && (spellArea.raceMask & RACEMASK_ALL_PLAYABLE) == 0)
        {
            sLog->outErrorDb("Spell %u listed in `spell_area` have wrong race mask (%u) requirement", spell, spellArea.raceMask);
            continue;
        }

        if (spellArea.gender != GENDER_NONE && spellArea.gender != GENDER_FEMALE && spellArea.gender != GENDER_MALE)
        {
            sLog->outErrorDb("Spell %u listed in `spell_area` have wrong gender (%u) requirement", spell, spellArea.gender);
            continue;
        }

        SpellArea const* sa = &mSpellAreaMap.insert(SpellAreaMap::value_type(spell, spellArea))->second;

        // for search by current zone/subzone at zone/subzone change
        if (spellArea.areaId)
            mSpellAreaForAreaMap.insert(SpellAreaForAreaMap::value_type(spellArea.areaId, sa));

        // for search at quest start/reward
        if (spellArea.questStart)
        {
            if (spellArea.questStartCanActive)
                mSpellAreaForActiveQuestMap.insert(SpellAreaForQuestMap::value_type(spellArea.questStart, sa));
            else
                mSpellAreaForQuestMap.insert(SpellAreaForQuestMap::value_type(spellArea.questStart, sa));
        }

        // for search at quest start/reward
        if (spellArea.questEnd)
            mSpellAreaForQuestEndMap.insert(SpellAreaForQuestMap::value_type(spellArea.questEnd, sa));

        // for search at aura apply
        if (spellArea.auraSpell)
            mSpellAreaForAuraMap.insert(SpellAreaForAuraMap::value_type(abs(spellArea.auraSpell), sa));

        count++;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u spell area requirements in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadActionBarSpellOverride ()
{
    uint32 oldMSTime = getMSTime();
    mActionBarSpellOverrideMap.clear();

    QueryResult result = WorldDatabase.Query("SELECT overrideSpell, affSpell, aura FROM spell_override ORDER BY overrideSpell ASC");

    if (!result)
    {
        sLog->outString(">> Loaded 0 actionbar spell override. DB table `spell_override` is empty.");
        sLog->outString();
        return;
    }

    do
    {
        Field *fields = result->Fetch();

        uint32 overrideSpell = fields[0].GetUInt32();
        uint32 affSpell = fields[1].GetUInt32();
        uint32 aura = fields[2].GetUInt32();

        //Check
        if (!sSpellStore.LookupEntry(overrideSpell))
        {
            sLog->outErrorDb("Spell (overrideSpell) %u listed in `spell_override` does not exist", overrideSpell);
            continue;
        }

        if (!sSpellStore.LookupEntry(affSpell))
        {
            sLog->outErrorDb("Spell (affSpell) %u listed in `spell_override` does not exist", affSpell);
            continue;
        }

        if (aura != 0 && !sSpellStore.LookupEntry(aura))
        {
            sLog->outErrorDb("Spell (aura) %u listed in `spell_override` does not exist", aura);
            continue;
        }

        ActionBarSpellOverride actbarSpellov;
        actbarSpellov.affSpell = affSpell;
        actbarSpellov.aura = aura;

        mActionBarSpellOverrideMap[overrideSpell] = actbarSpellov;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u actionbar spell override in %u ms", mActionBarSpellOverrideMap.size(), GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

ActionBarSpellOverride const* SpellMgr::GetActionBarSpellOverride (uint32 overrideSpell) const
{
    ActionBarSpellOverrideMap::const_iterator itr = mActionBarSpellOverrideMap.find(overrideSpell);

    if (itr == mActionBarSpellOverrideMap.end())
        return NULL;
    else
        return &itr->second;
}

SpellCastResult SpellMgr::GetSpellAllowedInLocationError (SpellEntry const *spellInfo, uint32 map_id, uint32 zone_id, uint32 area_id, Player const* player)
{
    // normal case
    if (spellInfo->AreaGroupId > 0)
    {
        bool found = false;
        AreaGroupEntry const* groupEntry = sAreaGroupStore.LookupEntry(spellInfo->AreaGroupId);
        while (groupEntry)
        {
            for (uint8 i = 0; i < MAX_GROUP_AREA_IDS; ++i)
                if (groupEntry->AreaId[i] == zone_id || groupEntry->AreaId[i] == area_id)
                    found = true;
            if (found || !groupEntry->nextGroup)
                break;
            // Try search in next group
            groupEntry = sAreaGroupStore.LookupEntry(groupEntry->nextGroup);
        }

        if (!found)
            return SPELL_FAILED_INCORRECT_AREA;
    }

    // continent limitation (virtual continent)
    if (spellInfo->AttributesEx4 & SPELL_ATTR4_CAST_ONLY_IN_OUTLAND)
    {
        uint32 v_map = GetVirtualMapForMapAndZone(map_id, zone_id);
        MapEntry const *mapEntry = sMapStore.LookupEntry(v_map);
        if (!mapEntry || mapEntry->addon < 1 || !mapEntry->IsContinent())
            return SPELL_FAILED_INCORRECT_AREA;
    }

    // raid instance limitation
    if (spellInfo->AttributesEx6 & SPELL_ATTR6_NOT_IN_RAID_INSTANCE)
    {
        MapEntry const *mapEntry = sMapStore.LookupEntry(map_id);
        if (!mapEntry || mapEntry->IsRaid())
            return SPELL_FAILED_NOT_IN_RAID_INSTANCE;
    }

    // DB base check (if non empty then must fit at least single for allow)
    SpellAreaMapBounds saBounds = sSpellMgr->GetSpellAreaMapBounds(spellInfo->Id);
    if (saBounds.first != saBounds.second)
    {
        for (SpellAreaMap::const_iterator itr = saBounds.first; itr != saBounds.second; ++itr)
        {
            if (itr->second.IsFitToRequirements(player, zone_id, area_id))
                return SPELL_CAST_OK;
        }
        return SPELL_FAILED_INCORRECT_AREA;
    }

    // bg spell checks
    switch (spellInfo->Id)
    {
    case 23333:          // Warsong Flag
    case 23335:          // Silverwing Flag
        return map_id == 489 || 726 && player && player->InBattleground() ? SPELL_CAST_OK : SPELL_FAILED_REQUIRES_AREA;
    case 34976:          // Netherstorm Flag
        return map_id == 566 && player && player->InBattleground() ? SPELL_CAST_OK : SPELL_FAILED_REQUIRES_AREA;
    case 2584:          // Waiting to Resurrect
    case 22011:          // Spirit Heal Channel
    case 22012:          // Spirit Heal
    case 24171:          // Resurrection Impact Visual
    case 42792:          // Recently Dropped Flag
    case 43681:          // Inactive
    case 44535:          // Spirit Heal (mana)
    {
        MapEntry const* mapEntry = sMapStore.LookupEntry(map_id);
        if (!mapEntry)
            return SPELL_FAILED_INCORRECT_AREA;

        return zone_id == 4197 || (mapEntry->IsBattleground() && player && player->InBattleground()) ? SPELL_CAST_OK : SPELL_FAILED_REQUIRES_AREA;
    }
    case 44521:          // Preparation
    {
        if (!player)
            return SPELL_FAILED_REQUIRES_AREA;

        MapEntry const *mapEntry = sMapStore.LookupEntry(map_id);
        if (!mapEntry)
            return SPELL_FAILED_INCORRECT_AREA;

        if (!mapEntry->IsBattleground())
            return SPELL_FAILED_REQUIRES_AREA;

        Battleground* bg = player->GetBattleground();
        return bg && bg->GetStatus() == STATUS_WAIT_JOIN ? SPELL_CAST_OK : SPELL_FAILED_REQUIRES_AREA;
    }
    case 32724:          // Gold Team (Alliance)
    case 32725:          // Green Team (Alliance)
    case 35774:          // Gold Team (Horde)
    case 35775:          // Green Team (Horde)
    {
        MapEntry const *mapEntry = sMapStore.LookupEntry(map_id);
        if (!mapEntry)
            return SPELL_FAILED_INCORRECT_AREA;

        return mapEntry->IsBattleArena() && player && player->InBattleground() ? SPELL_CAST_OK : SPELL_FAILED_REQUIRES_AREA;
    }
    case 32727:          // Arena Preparation
    {
        if (!player)
            return SPELL_FAILED_REQUIRES_AREA;

        MapEntry const *mapEntry = sMapStore.LookupEntry(map_id);
        if (!mapEntry)
            return SPELL_FAILED_INCORRECT_AREA;

        if (!mapEntry->IsBattleArena())
            return SPELL_FAILED_REQUIRES_AREA;

        Battleground *bg = player->GetBattleground();
        return bg && bg->GetStatus() == STATUS_WAIT_JOIN ? SPELL_CAST_OK : SPELL_FAILED_REQUIRES_AREA;
    }
    }

    // aura limitations
    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        switch (spellInfo->EffectApplyAuraName[i])
        {
        case SPELL_AURA_MOD_INCREASE_MOUNTED_FLIGHT_SPEED:
        case SPELL_AURA_FLY:
        {
            if (player && !player->IsKnowHowFlyIn(map_id, zone_id))
                return SPELL_FAILED_INCORRECT_AREA;
        }
        }
    }

    return SPELL_CAST_OK;
}

void SpellMgr::LoadSkillLineAbilityMap ()
{
    uint32 oldMSTime = getMSTime();

    mSkillLineAbilityMap.clear();

    uint32 count = 0;

    for (uint32 i = 0; i < sSkillLineAbilityStore.GetNumRows(); ++i)
    {
        SkillLineAbilityEntry const *SkillInfo = sSkillLineAbilityStore.LookupEntry(i);
        if (!SkillInfo)
            continue;

        mSkillLineAbilityMap.insert(SkillLineAbilityMap::value_type(SkillInfo->spellId, SkillInfo));
        count++;
    }

    sLog->outString(">> Loaded %u SkillLineAbility MultiMap Data in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

DiminishingGroup GetDiminishingReturnsGroupForSpell (SpellEntry const* spellproto, bool triggered)
{
    if (IsPositiveSpell(spellproto->Id))
        return DIMINISHING_NONE;

    // Explicit Diminishing Groups
    switch (spellproto->SpellFamilyName)
    {
    // Event spells
    case SPELLFAMILY_UNK1:
        return DIMINISHING_NONE;
    case SPELLFAMILY_GENERIC:
        // some generic arena related spells have by some strange reason MECHANIC_TURN
        if (spellproto->Mechanic == MECHANIC_TURN)
            return DIMINISHING_NONE;
        break;
    case SPELLFAMILY_MAGE:
    {
        // Frostbite
        if (spellproto->SpellFamilyFlags[1] & 0x80000000)
            return DIMINISHING_TRIGGER_ROOT;
        //Shattered Barrier: only flag SpellFamilyFlags[0] = 0x00080000 shared
        //by most frost spells, using id instead
        if (spellproto->Id == 55080)
            return DIMINISHING_TRIGGER_ROOT;
        // Frost Nova / Freeze (Water Elemental)
        if (spellproto->SpellIconID == 193)
            return DIMINISHING_CONTROL_ROOT;
        // Dragon's Breath
        else if (spellproto->SpellFamilyFlags[0] & 0x800000)
            return DIMINISHING_KNOCKOUT;
        // Ring of Frost "Freeze Effect" according to WoWWiki is categorized under "Disorient"
        // Placed it under Controlled Root due to DIMINISHING_DISORIENT returning a compile error.
        if (spellproto->Id == 82691)
            return DIMINISHING_CONTROL_ROOT;
        break;
    }
    case SPELLFAMILY_ROGUE:
    {
        // Sap 0x80 Gouge 0x8
        if (spellproto->SpellFamilyFlags[0] & 0x88)
            return DIMINISHING_POLYMORPH;
        // Blind
        else if (spellproto->SpellFamilyFlags[0] & 0x1000000)
            return DIMINISHING_FEAR_BLIND;
        // Cheap Shot
        else if (spellproto->SpellFamilyFlags[0] & 0x400)
            return DIMINISHING_CHEAPSHOT_POUNCE;
        // Kidney Shot
        else if (spellproto->SpellFamilyFlags[0] & 0x200000)
            return DIMINISHING_CHEAPSHOT_POUNCE;
        // Crippling poison - Limit to 10 seconds in PvP (No SpellFamilyFlags)
        else if (spellproto->SpellIconID == 163)
            return DIMINISHING_LIMITONLY;
        break;
    }
    case SPELLFAMILY_WARLOCK:
    {
        // Death Coil
        if (spellproto->SpellFamilyFlags[0] & 0x80000)
            return DIMINISHING_DEATHCOIL;
        // Curses/etc
        else if ((spellproto->SpellFamilyFlags[0] & 0x80000000) || (spellproto->SpellFamilyFlags[1] & 0x200))
            return DIMINISHING_LIMITONLY;
        // Howl of Terror
        else if (spellproto->SpellFamilyFlags[1] & 0x8)
            return DIMINISHING_FEAR_BLIND;
        // Seduction
        else if (spellproto->SpellFamilyFlags[1] & 0x10000000)
            return DIMINISHING_FEAR_BLIND;
        break;
    }
    case SPELLFAMILY_DRUID:
    {
        // Pounce
        if (spellproto->SpellFamilyFlags[0] & 0x20000)
            return DIMINISHING_CHEAPSHOT_POUNCE;
        // Cyclone
        else if (spellproto->SpellFamilyFlags[1] & 0x20)
            return DIMINISHING_CYCLONE;
        // Entangling Roots: to force natures grasp proc to be control root
        else if (spellproto->SpellFamilyFlags[0] & 0x00000200)
            return DIMINISHING_CONTROL_ROOT;
        // Faerie Fire
        else if (spellproto->SpellFamilyFlags[0] & 0x400)
            return DIMINISHING_LIMITONLY;
        // Nature's Grasp
        else if (spellproto->SpellFamilyFlags[0] & 0x00000200)
            return DIMINISHING_CONTROL_ROOT;
        break;
    }
    case SPELLFAMILY_WARRIOR:
    {
        // Hamstring - limit duration to 10s in PvP
        if (spellproto->SpellFamilyFlags[0] & 0x2)
            return DIMINISHING_LIMITONLY;
        // Intimidating Shout
        else if (spellproto->SpellFamilyFlags[0] & 0x40000)
            return DIMINISHING_FEAR_BLIND;
        // Charge Stun
        else if (spellproto->SpellFamilyFlags[0] & 0x01000000)
            return DIMINISHING_NONE;
        break;
    }
    case SPELLFAMILY_PALADIN:
    {
        // Repentance
        if (spellproto->SpellFamilyFlags[0] & 0x4)
            return DIMINISHING_POLYMORPH;
        // Judgement of Justice - limit duration to 10s in PvP
        if (spellproto->SpellFamilyFlags[0] & 0x100000)
            return DIMINISHING_LIMITONLY;
        // Turn Evil
        else if ((spellproto->SpellFamilyFlags[1] & 0x804000) && spellproto->SpellIconID == 309)
            return DIMINISHING_FEAR_BLIND;
        break;
    }
    case SPELLFAMILY_DEATHKNIGHT:
    {
        // Hungering Cold (no flags)
        if (spellproto->SpellIconID == 2797)
            return DIMINISHING_POLYMORPH;
        // Mark of Blood
        else if ((spellproto->SpellFamilyFlags[0] & 0x10000000) && spellproto->SpellIconID == 2285)
            return DIMINISHING_LIMITONLY;
        break;
    }
    case SPELLFAMILY_HUNTER:
    {
        // Hunter's mark
        if ((spellproto->SpellFamilyFlags[0] & 0x400) && spellproto->SpellIconID == 538)
            return DIMINISHING_LIMITONLY;
        // Scatter Shot
        if ((spellproto->SpellFamilyFlags[0] & 0x40000) && spellproto->SpellIconID == 132)
            return DIMINISHING_NONE;
        // Wyvern Sting mechanic is MECHANIC_SLEEP but the diminishing is DIMINISHING_DISORIENT
        else if ((spellproto->SpellFamilyFlags[1] & 0x1000) && spellproto->SpellIconID == 1721)
            return DIMINISHING_KNOCKOUT;
        // Freezing Arrow
        else if (spellproto->SpellFamilyFlags[0] & 0x8)
            return DIMINISHING_KNOCKOUT;
        break;
    }
    default:
        break;
    }

    // Get by mechanic
    uint32 mechanic = GetAllSpellMechanicMask(spellproto);
    if (mechanic == MECHANIC_NONE)
        return DIMINISHING_NONE;
    if (mechanic & ((1 << MECHANIC_STUN) | (1 << MECHANIC_SHACKLE)))
        return triggered ? DIMINISHING_TRIGGER_STUN : DIMINISHING_CONTROL_STUN;
    if (mechanic & ((1 << MECHANIC_SLEEP) | (1 << MECHANIC_FREEZE)))
        return DIMINISHING_FREEZE_SLEEP;
    if (mechanic & (1 << MECHANIC_POLYMORPH))
        return DIMINISHING_POLYMORPH;
    if (mechanic & (1 << MECHANIC_ROOT))
        return triggered ? DIMINISHING_TRIGGER_ROOT : DIMINISHING_CONTROL_ROOT;
    if (mechanic & ((1 << MECHANIC_FEAR) | (1 << MECHANIC_TURN)))
        return DIMINISHING_FEAR_BLIND;
    if (mechanic & (1 << MECHANIC_CHARM))
        return DIMINISHING_CHARM;
    if (mechanic & (1 << MECHANIC_SILENCE))
        return DIMINISHING_SILENCE;
    if (mechanic & (1 << MECHANIC_DISARM))
        return DIMINISHING_DISARM;
    if (mechanic & (1 << MECHANIC_FREEZE))
        return DIMINISHING_FREEZE_SLEEP;
    if (mechanic & ((1 << MECHANIC_KNOCKOUT) | (1 << MECHANIC_SAPPED)))
        return DIMINISHING_KNOCKOUT;
    if (mechanic & (1 << MECHANIC_BANISH))
        return DIMINISHING_BANISH;
    if (mechanic & (1 << MECHANIC_HORROR))
        return DIMINISHING_DEATHCOIL;

    // Get by effect
    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        if (spellproto->EffectApplyAuraName[i] == SPELL_AURA_MOD_TAUNT)
            return DIMINISHING_TAUNT;
    }
    return DIMINISHING_NONE;
}

int32 GetDiminishingReturnsLimitDuration (DiminishingGroup group, SpellEntry const* spellproto)
{
    if (!IsDiminishingReturnsGroupDurationLimited(group))
        return 0;

    // Explicit diminishing duration
    switch (spellproto->SpellFamilyName)
    {
    case SPELLFAMILY_HUNTER:
    {
        // Wyvern Sting
        if (spellproto->SpellFamilyFlags[1] & 0x1000)
            return 6 * IN_MILLISECONDS;
        // Hunter's Mark
        if (spellproto->SpellFamilyFlags[0] & 0x400)
            return 120 * IN_MILLISECONDS;
        break;
    }
    case SPELLFAMILY_PALADIN:
    {
        // Repentance - limit to 6 seconds in PvP
        if (spellproto->SpellFamilyFlags[0] & 0x4)
            return 6 * IN_MILLISECONDS;
        break;
    }
    case SPELLFAMILY_DRUID:
    {
        // Faerie Fire - limit to 40 seconds in PvP (3.1)
        if (spellproto->SpellFamilyFlags[0] & 0x400)
            return 40 * IN_MILLISECONDS;
        break;
    }
    default:
        break;
    }

    return 10 * IN_MILLISECONDS;
}

bool IsDiminishingReturnsGroupDurationLimited (DiminishingGroup group)
{
    switch (group)
    {
    case DIMINISHING_CONTROL_STUN:
    case DIMINISHING_TRIGGER_STUN:
    case DIMINISHING_FREEZE_SLEEP:
    case DIMINISHING_CONTROL_ROOT:
    case DIMINISHING_TRIGGER_ROOT:
    case DIMINISHING_FEAR_BLIND:
    case DIMINISHING_CHARM:
    case DIMINISHING_POLYMORPH:
    case DIMINISHING_KNOCKOUT:
    case DIMINISHING_CYCLONE:
    case DIMINISHING_BANISH:
    case DIMINISHING_LIMITONLY:
    case DIMINISHING_CHEAPSHOT_POUNCE:
        return true;
    default:
        return false;
    }
}

DiminishingLevels GetDiminishingReturnsMaxLevel (DiminishingGroup group)
{
    switch (group)
    {
    case DIMINISHING_TAUNT:
        return DIMINISHING_LEVEL_TAUNT_IMMUNE;
    default:
        return DIMINISHING_LEVEL_IMMUNE;
    }
}

DiminishingReturnsType GetDiminishingReturnsGroupType (DiminishingGroup group)
{
    switch (group)
    {
    case DIMINISHING_TAUNT:
    case DIMINISHING_CONTROL_STUN:
    case DIMINISHING_TRIGGER_STUN:
    case DIMINISHING_CHEAPSHOT_POUNCE:
    case DIMINISHING_CYCLONE:
        return DRTYPE_ALL;
    case DIMINISHING_FEAR_BLIND:
    case DIMINISHING_CONTROL_ROOT:
    case DIMINISHING_TRIGGER_ROOT:
    case DIMINISHING_CHARM:
    case DIMINISHING_POLYMORPH:
    case DIMINISHING_SILENCE:
    case DIMINISHING_DISARM:
    case DIMINISHING_DEATHCOIL:
    case DIMINISHING_FREEZE_SLEEP:
    case DIMINISHING_BANISH:
    case DIMINISHING_KNOCKOUT:
        return DRTYPE_PLAYER;
    default:
        break;
    }

    return DRTYPE_NONE;
}

bool IsPartOfSkillLine (uint32 skillId, uint32 spellId)
{
    SkillLineAbilityMapBounds skillBounds = sSpellMgr->GetSkillLineAbilityMapBounds(spellId);
    for (SkillLineAbilityMap::const_iterator itr = skillBounds.first; itr != skillBounds.second; ++itr)
        if (itr->second->skillId == skillId)
            return true;

    return false;
}

bool SpellArea::IsFitToRequirements (Player const* player, uint32 newZone, uint32 newArea) const
{
    if (gender != GENDER_NONE)          // not in expected gender
        if (!player || gender != player->getGender())
            return false;

    if (raceMask)          // not in expected race
        if (!player || !(raceMask & player->getRaceMask()))
            return false;

    if (areaId)          // not in expected zone
        if (newZone != areaId && newArea != areaId)
            return false;

    if (questStart)          // not in expected required quest state
        if (!player || ((!questStartCanActive || !player->IsActiveQuest(questStart)) && !player->GetQuestRewardStatus(questStart)))
            return false;

    if (questEnd)          // not in expected forbidden quest state
        if (!player || player->GetQuestRewardStatus(questEnd))
            return false;

    if (auraSpell)          // not have expected aura
        if (!player || (auraSpell > 0 && !player->HasAura(auraSpell)) || (auraSpell < 0 && player->HasAura(-auraSpell)))
            return false;

    // Extra conditions -- leaving the possibility add extra conditions...
    switch (spellId)
    {
    case 58600:          // No fly Zone - Dalaran
    {
        if (!player)
            return false;

        AreaTableEntry const* pArea = GetAreaEntryByAreaID(player->GetAreaId());
        if (!(pArea && pArea->flags & AREA_FLAG_NO_FLY_ZONE))
            return false;
        if (!player->HasAuraType(SPELL_AURA_MOD_INCREASE_MOUNTED_FLIGHT_SPEED) && !player->HasAuraType(SPELL_AURA_FLY))
            return false;
        break;
    }
    case 58730:          // No fly Zone - Wintergrasp
    {
        if (!player)
            return false;

        if (sWorld->getBoolConfig(CONFIG_OUTDOORPVP_WINTERGRASP_ENABLED))
        {
            OutdoorPvPWG *pvpWG = (OutdoorPvPWG*) sOutdoorPvPMgr->GetOutdoorPvPToZoneId(4197);
            if ((pvpWG->isWarTime() == false) || player->isDead() || player->HasAura(45472) || player->HasAura(44795) || player->GetPositionZ() > 619.2f || player->isInFlight() || (!player->HasAuraType(SPELL_AURA_MOD_INCREASE_MOUNTED_FLIGHT_SPEED) && !player->HasAuraType(SPELL_AURA_FLY)))
                return false;
        }
        break;
    }
    case 58045:          // Essence of Wintergrasp - Wintergrasp
    case 57940:          // Essence of Wintergrasp - Northrend
    {
        if (!player || player->GetTeamId() != sWorld->getWorldState(WORLDSTATE_WINTERGRASP_CONTROLING_FACTION))
            return false;
        break;
    }
    case 68719:          // Oil Refinery - Isle of Conquest.
    case 68720:          // Quarry - Isle of Conquest.
    {
        if (player->GetBattlegroundTypeId() != BATTLEGROUND_IC || !player->GetBattleground())
            return false;

        uint8 nodeType = spellId == 68719 ? NODE_TYPE_REFINERY : NODE_TYPE_QUARRY;
        uint8 nodeState = player->GetTeamId() == TEAM_ALLIANCE ? NODE_STATE_CONTROLLED_A : NODE_STATE_CONTROLLED_H;

        BattlegroundIC* pIC = static_cast<BattlegroundIC*>(player->GetBattleground());
        if (pIC->GetNodeState(nodeType) == nodeState)
            return true;

        return false;
    }
    }

    return true;
}

//-----------ARKCORE-------------

bool SpellMgr::CanAurasStack (Aura const *aura1, Aura const *aura2, bool sameCaster) const
{
    SpellEntry const *spellInfo_1 = aura1->GetSpellProto();
    SpellEntry const *spellInfo_2 = aura2->GetSpellProto();
    SpellSpecific spellSpec_1 = GetSpellSpecific(spellInfo_1);
    SpellSpecific spellSpec_2 = GetSpellSpecific(spellInfo_2);
    if (spellSpec_1 && spellSpec_2)
        if (IsSingleFromSpellSpecificPerTarget(spellSpec_1, spellSpec_2) || (sameCaster && IsSingleFromSpellSpecificPerCaster(spellSpec_1, spellSpec_2)))
            return false;

    SpellGroupStackRule stackRule = CheckSpellGroupStackRules(spellInfo_1->Id, spellInfo_2->Id);
    if (stackRule)
    {
        if (stackRule == SPELL_GROUP_STACK_RULE_EXCLUSIVE)
            return false;
        if (sameCaster && stackRule == SPELL_GROUP_STACK_RULE_EXCLUSIVE_FROM_SAME_CASTER)
            return false;
    }

    if (spellInfo_1->SpellFamilyName != spellInfo_2->SpellFamilyName)
        return true;

    if (!sameCaster)
    {
        if (spellInfo_1->AttributesEx & SPELL_ATTR1_STACK_FOR_DIFF_CASTERS || spellInfo_1->AttributesEx3 & SPELL_ATTR3_STACK_FOR_DIFF_CASTERS)
            return true;

        // check same periodic auras
        for (uint32 i = 0; i < MAX_SPELL_EFFECTS; ++i)
        {
            switch (spellInfo_1->EffectApplyAuraName[i])
            {
            // DOT or HOT from different casters will stack
            case SPELL_AURA_PERIODIC_DAMAGE:
            case SPELL_AURA_PERIODIC_DUMMY:
            case SPELL_AURA_PERIODIC_HEAL:
            case SPELL_AURA_PERIODIC_TRIGGER_SPELL:
            case SPELL_AURA_PERIODIC_ENERGIZE:
            case SPELL_AURA_PERIODIC_MANA_LEECH:
            case SPELL_AURA_PERIODIC_LEECH:
            case SPELL_AURA_POWER_BURN:
            case SPELL_AURA_OBS_MOD_POWER:
            case SPELL_AURA_OBS_MOD_HEALTH:
            case SPELL_AURA_PERIODIC_TRIGGER_SPELL_WITH_VALUE:
                // periodic auras which target areas are not allowed to stack this way (replenishment for example)
                if (IsAreaOfEffectSpellEffect(spellInfo_1, i) || IsAreaOfEffectSpellEffect(spellInfo_2, i))
                    break;
                return true;
            default:
                break;
            }
        }
    }

    uint32 spellId_1 = GetLastSpellInChain(spellInfo_1->Id);
    uint32 spellId_2 = GetLastSpellInChain(spellInfo_2->Id);

    // same spell
    if (spellId_1 == spellId_2)
    {
        // Hack for Incanter's Absorption
        if (spellId_1 == 44413)
            return true;
        if (aura1->GetCastItemGUID() && aura2->GetCastItemGUID())
            if (aura1->GetCastItemGUID() != aura2->GetCastItemGUID() && (GetSpellCustomAttr(spellId_1) & SPELL_ATTR0_CU_ENCHANT_PROC))
                return true;
        // same spell with same caster should not stack
        return false;
    }

    return true;
}

bool CanSpellDispelAura (SpellEntry const * dispelSpell, SpellEntry const * aura)
{
    // These auras (like ressurection sickness) can't be dispelled
    if (aura->Attributes & SPELL_ATTR0_NEGATIVE_1)
        return false;

    // These spells (like Mass Dispel) can dispell all auras
    if (dispelSpell->Attributes & SPELL_ATTR0_UNAFFECTED_BY_INVULNERABILITY)
        return true;

    // These auras (like Divine Shield) can't be dispelled
    if (aura->Attributes & SPELL_ATTR0_UNAFFECTED_BY_INVULNERABILITY)
        return false;

    // These auras (Cyclone for example) are not dispelable
    if (aura->AttributesEx & SPELL_ATTR1_UNAFFECTED_BY_SCHOOL_IMMUNE)
        return false;

    return true;
}

bool CanSpellPierceImmuneAura (SpellEntry const * pierceSpell, SpellEntry const * aura)
{
    // these spells pierce all avalible spells (Resurrection Sickness for example)
    if (pierceSpell->Attributes & SPELL_ATTR0_UNAFFECTED_BY_INVULNERABILITY)
        return true;

    // these spells (Cyclone for example) can pierce all...
    if ((pierceSpell->AttributesEx & SPELL_ATTR1_UNAFFECTED_BY_SCHOOL_IMMUNE)
    // ...but not these (Divine shield for example)
    && !(aura && (aura->Mechanic == MECHANIC_IMMUNE_SHIELD || aura->Mechanic == MECHANIC_INVULNERABILITY)))
        return true;

    return false;
}

void SpellMgr::LoadSpellEnchantProcData ()
{
    uint32 oldMSTime = getMSTime();

    mSpellEnchantProcEventMap.clear();          // need for reload case

    uint32 count = 0;

    //                                                  0         1           2         3
    QueryResult result = WorldDatabase.Query("SELECT entry, customChance, PPMChance, procEx FROM spell_enchant_proc_data");
    if (!result)
    {
        sLog->outString(">> Loaded %u spell enchant proc event conditions", count);
        sLog->outString();
        return;
    }

    do
    {
        Field *fields = result->Fetch();

        uint32 enchantId = fields[0].GetUInt32();

        SpellItemEnchantmentEntry const *ench = sSpellItemEnchantmentStore.LookupEntry(enchantId);
        if (!ench)
        {
            sLog->outErrorDb("Enchancment %u listed in `spell_enchant_proc_data` does not exist", enchantId);
            continue;
        }

        SpellEnchantProcEntry spe;

        spe.customChance = fields[1].GetUInt32();
        spe.PPMChance = fields[2].GetFloat();
        spe.procEx = fields[3].GetUInt32();

        mSpellEnchantProcEventMap[enchantId] = spe;

        count++;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u enchant proc data definitions in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellRequired ()
{
    uint32 oldMSTime = getMSTime();

    mSpellsReqSpell.clear();          // need for reload case
    mSpellReq.clear();          // need for reload case

    QueryResult result = WorldDatabase.Query("SELECT spell_id, req_spell from spell_required");

    if (!result)
    {
        sLog->outString(">> Loaded 0 spell required records");
        sLog->outString();
        sLog->outErrorDb("`spell_required` table is empty!");
        return;
    }

    uint32 rows = 0;

    do
    {
        Field *fields = result->Fetch();

        uint32 spell_id = fields[0].GetUInt32();
        uint32 spell_req = fields[1].GetUInt32();
        // check if chain is made with valid first spell
        SpellEntry const * spell = sSpellStore.LookupEntry(spell_id);
        if (!spell)
        {
            sLog->outErrorDb("spell_id %u in `spell_required` table is not found in dbcs, skipped", spell_id);
            continue;
        }
        SpellEntry const * req_spell = sSpellStore.LookupEntry(spell_req);
        if (!req_spell)
        {
            sLog->outErrorDb("req_spell %u in `spell_required` table is not found in dbcs, skipped", spell_req);
            continue;
        }
        if (GetFirstSpellInChain(spell_id) == GetFirstSpellInChain(spell_req))
        {
            sLog->outErrorDb("req_spell %u and spell_id %u in `spell_required` table are ranks of the same spell, entry not needed, skipped", spell_req, spell_id);
            continue;
        }
        if (IsSpellRequiringSpell(spell_id, spell_req))
        {
            sLog->outErrorDb("duplicated entry of req_spell %u and spell_id %u in `spell_required`, skipped", spell_req, spell_id);
            continue;
        }

        mSpellReq.insert(std::pair<uint32, uint32>(spell_id, spell_req));
        mSpellsReqSpell.insert(std::pair<uint32, uint32>(spell_req, spell_id));
        ++rows;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u spell required records in %u ms", rows, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellRanks ()
{
    uint32 oldMSTime = getMSTime();

    mSpellChains.clear();          // need for reload case

    QueryResult result = WorldDatabase.Query("SELECT first_spell_id, spell_id, rank from spell_ranks ORDER BY first_spell_id , rank");

    if (!result)
    {
        sLog->outString(">> Loaded 0 spell rank records");
        sLog->outString();
        sLog->outErrorDb("`spell_ranks` table is empty!");
        return;
    }

    uint32 rows = 0;
    bool finished = false;

    do
    {
        // spellid, rank
        std::list < std::pair<int32, int32> > rankChain;
        int32 currentSpell = -1;
        int32 lastSpell = -1;

        // fill one chain
        while (currentSpell == lastSpell && !finished)
        {
            Field *fields = result->Fetch();

            currentSpell = fields[0].GetUInt32();
            if (lastSpell == -1)
                lastSpell = currentSpell;
            uint32 spell_id = fields[1].GetUInt32();
            uint32 rank = fields[2].GetUInt32();

            // don't drop the row if we're moving to the next rank
            if (currentSpell == lastSpell)
            {
                rankChain.push_back(std::make_pair(spell_id, rank));
                if (!result->NextRow())
                    finished = true;
            }
            else
                break;
        }
        // check if chain is made with valid first spell
        SpellEntry const * first = sSpellStore.LookupEntry(lastSpell);
        if (!first)
        {
            sLog->outErrorDb("Spell rank identifier(first_spell_id) %u listed in `spell_ranks` does not exist!", lastSpell);
            continue;
        }
        // check if chain is long enough
        if (rankChain.size() < 2)
        {
            sLog->outErrorDb("There is only 1 spell rank for identifier(first_spell_id) %u in `spell_ranks`, entry is not needed!", lastSpell);
            continue;
        }
        int32 curRank = 0;
        bool valid = true;
        // check spells in chain
        for (std::list<std::pair<int32, int32> >::iterator itr = rankChain.begin(); itr != rankChain.end(); ++itr)
        {
            SpellEntry const * spell = sSpellStore.LookupEntry(itr->first);
            if (!spell)
            {
                sLog->outErrorDb("Spell %u (rank %u) listed in `spell_ranks` for chain %u does not exist!", itr->first, itr->second, lastSpell);
                valid = false;
                break;
            }
            ++curRank;
            if (itr->second != curRank)
            {
                sLog->outErrorDb("Spell %u (rank %u) listed in `spell_ranks` for chain %u does not have proper rank value(should be %u)!", itr->first, itr->second, lastSpell, curRank);
                valid = false;
                break;
            }
        }
        if (!valid)
            continue;
        int32 prevRank = 0;
        // insert the chain
        std::list<std::pair<int32, int32> >::iterator itr = rankChain.begin();
        do
        {
            ++rows;
            int32 addedSpell = itr->first;
            mSpellChains[addedSpell].first = lastSpell;
            mSpellChains[addedSpell].last = rankChain.back().first;
            mSpellChains[addedSpell].rank = itr->second;
            mSpellChains[addedSpell].prev = prevRank;
            prevRank = addedSpell;
            ++itr;
            if (itr == rankChain.end())
            {
                mSpellChains[addedSpell].next = 0;
                break;
            }
            else
                mSpellChains[addedSpell].next = itr->first;
        }
        while (true);
    }
    while (!finished);

    sLog->outString(">> Loaded %u spell rank records in %u ms", rows, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellCustomAttr ()
{
    uint32 oldMSTime = getMSTime();

    mSpellCustomAttr.resize(GetSpellStore()->GetNumRows(), 0);          // initialize with 0 values;

    uint32 count = 0;

    SpellEntry* spellInfo = NULL;
    for (uint32 i = 0; i < sSpellStore.GetNumRows(); ++i)
    {
        spellInfo = (SpellEntry*) sSpellStore.LookupEntry(i);
        if (!spellInfo)
            continue;

        for (uint8 j = 0; j < MAX_SPELL_EFFECTS; ++j)
        {
            switch (spellInfo->Effect[j])
            {
            case SPELL_EFFECT_SCHOOL_DAMAGE:
            case SPELL_EFFECT_WEAPON_DAMAGE:
            case SPELL_EFFECT_WEAPON_DAMAGE_NOSCHOOL:
            case SPELL_EFFECT_NORMALIZED_WEAPON_DMG:
            case SPELL_EFFECT_WEAPON_PERCENT_DAMAGE:
            case SPELL_EFFECT_HEAL:
                mSpellCustomAttr[i] |= SPELL_ATTR0_CU_DIRECT_DAMAGE;
                count++;
                break;
            case SPELL_EFFECT_CHARGE:
            case SPELL_EFFECT_CHARGE_DEST:
            case SPELL_EFFECT_JUMP:
            case SPELL_EFFECT_JUMP_DEST:
            case SPELL_EFFECT_LEAP_BACK:
                if (!spellInfo->speed && !spellInfo->SpellFamilyName)
                    spellInfo->speed = SPEED_CHARGE;
                mSpellCustomAttr[i] |= SPELL_ATTR0_CU_CHARGE;
                count++;
                break;
            case SPELL_EFFECT_PICKPOCKET:
                mSpellCustomAttr[i] |= SPELL_ATTR0_CU_PICKPOCKET;
                break;
            case SPELL_EFFECT_TRIGGER_SPELL:
                if (IsPositionTarget(spellInfo->EffectImplicitTargetA[j]) || spellInfo->Targets & (TARGET_FLAG_SOURCE_LOCATION | TARGET_FLAG_DEST_LOCATION))
                    spellInfo->Effect[j] = SPELL_EFFECT_TRIGGER_MISSILE;
                count++;
                break;
            case SPELL_EFFECT_ENCHANT_ITEM:
            case SPELL_EFFECT_ENCHANT_ITEM_TEMPORARY:
            case SPELL_EFFECT_ENCHANT_ITEM_PRISMATIC:
            case SPELL_EFFECT_ENCHANT_HELD_ITEM:
            {
                // only enchanting profession enchantments procs can stack
                if (IsPartOfSkillLine(SKILL_ENCHANTING, i))
                {
                    uint32 enchantId = spellInfo->EffectMiscValue[j];
                    SpellItemEnchantmentEntry const *enchant = sSpellItemEnchantmentStore.LookupEntry(enchantId);
                    for (uint8 s = 0; s < MAX_ITEM_ENCHANTMENT_EFFECTS; ++s)
                    {
                        if (enchant->type[s] != ITEM_ENCHANTMENT_TYPE_COMBAT_SPELL)
                            continue;

                        SpellEntry const *procInfo = sSpellStore.LookupEntry(enchant->spellid[s]);
                        if (!procInfo)
                            continue;

                        // if proced directly from enchantment, not via proc aura
                        // NOTE: Enchant Weapon - Blade Ward also has proc aura spell and is proced directly
                        // however its not expected to stack so this check is good
                        if (IsSpellHaveAura(procInfo, SPELL_AURA_PROC_TRIGGER_SPELL))
                            continue;

                        mSpellCustomAttr[enchant->spellid[s]] |= SPELL_ATTR0_CU_ENCHANT_PROC;
                    }
                }
                break;
            }
            }

            switch (SpellTargetType[spellInfo->EffectImplicitTargetA[j]])
            {
            case TARGET_TYPE_UNIT_TARGET:
            case TARGET_TYPE_DEST_TARGET:
                spellInfo->Targets |= TARGET_FLAG_UNIT;
                count++;
                break;
            default:
                break;
            }
        }

        for (uint8 j = 0; j < MAX_SPELL_EFFECTS; ++j)
        {
            switch (spellInfo->EffectApplyAuraName[j])
            {
            case SPELL_AURA_MOD_POSSESS:
            case SPELL_AURA_MOD_CONFUSE:
            case SPELL_AURA_MOD_CHARM:
            case SPELL_AURA_AOE_CHARM:
            case SPELL_AURA_MOD_FEAR:
            case SPELL_AURA_MOD_STUN:
                mSpellCustomAttr[i] |= SPELL_ATTR0_CU_AURA_CC;
                count++;
                break;
            }
        }

        if (!_isPositiveEffect(i, 0, false))
        {
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_NEGATIVE_EFF0;
            count++;
        }
        if (!_isPositiveEffect(i, 1, false))
        {
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_NEGATIVE_EFF1;
            count++;
        }
        if (!_isPositiveEffect(i, 2, false))
        {
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_NEGATIVE_EFF2;
            count++;
        }

        if (spellInfo->SpellVisual[0] == 3879)
        {
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_CONE_BACK;
            count++;
        }

        if (spellInfo->activeIconID == 2158)          // flight
        {
            spellInfo->Attributes |= SPELL_ATTR0_PASSIVE;
            count++;
        }

        switch (i)
        {
            // CATACLYSM SPELLS CHANGES	
        case 48020:          // Demonic Circle
            spellInfo->casterAuraSpell = 0;
            break;
        case 53592:          // Touched by The Light
            spellInfo->EffectMiscValue[2] = 2;
            count++;
            break;
        case 79683:          // Arcane Missiles!
            spellInfo->procChance = 40;
            count++;
            break;
            // Masterys
        case 77515:          // Mastery: Dreadblade
            spellInfo->EffectBasePoints[0] = 20;
            count++;
            break;
        case 77514:          // Mastery: Frozen Heart
            spellInfo->EffectBasePoints[0] = 16;
            count++;
            break;
        case 77493:          // Mastery: Razor Claws
            spellInfo->EffectBasePoints[0] = 25.04;
            count++;
            break;
        case 76658:          // Mastery: Essence of the Viper
            spellInfo->EffectBasePoints[0] = 8;
            count++;
            break;
        case 76657:          // Mastery: Master of Beasts
            spellInfo->EffectBasePoints[0] = 13.6;
            count++;
            break;
        case 76595:          // Mastery: Flashburn
            spellInfo->EffectBasePoints[0] = 22.4;
            count++;
            break;
        case 76671:          // Mastery: Divine Bulwark
            spellInfo->EffectBasePoints[0] = 18;
            count++;
            break;
        case 77220:          // Mastery: Fiery Apocalypse
            spellInfo->EffectBasePoints[0] = 10.8;
            count++;
            break;
        case 76857:          // Mastery: Critical Block
            spellInfo->EffectBasePoints[0] = 12;
            spellInfo->EffectBasePoints[1] = 12;
            count++;
            break;
        case 77489:          // Mastery: Echo of Light
            spellInfo->StackAmount = 1;          // should be inf
            count++;
            break;
            //Other spells
        case 79638:          // Enhanced Strength
        case 76547:          // Mana Adept
        case 77226:          // Deep Healing
        case 76613:          // Frostburn
            spellInfo->EffectApplyAuraName[0] = SPELL_AURA_ADD_PCT_MODIFIER;
            spellInfo->EffectMiscValue[0] = 0;
            break;
        case 93072:          // Bring our Boys back
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_NEARBY_ENTRY;
            break;
        case 51514:          // Hex
        case 118:          // Polymorph
        case 61305:          // Polymorph (other animal)
        case 28272:          // polymorph (other animal)
        case 61721:          // Polymorph (other animal)
        case 61780:          // Polymorph (other animal)
        case 28271:          // Polymorph (other animal)
        case 8122:          // Physic Scream
        case 5484:          // Howl of Terror
            spellInfo->AuraInterruptFlags = AURA_INTERRUPT_FLAG_TAKE_DAMAGE;
            count++;
            break;
        case 85673:          // World of Glory
        case 89023:          // Blessed life (spell, not talent)
            spellInfo->Effect[1] = 0;
            count++;
            break;
			case 77612: //Modulation
			case 92451:
			case 92452:
			case 92453:
				spellInfo->EffectRadiusIndex[0] = 28;
				spellInfo->EffectRadiusIndex[1] = 28;
				spellInfo->EffectRadiusIndex[2] = 28;
				count++;
				break;
		   
		    case 86170: //Furious Roar
			case 83710:
			case 86169:
			case 86171:
				spellInfo->EffectRadiusIndex[0] = 28;
				spellInfo->EffectRadiusIndex[1] = 28;
				spellInfo->EffectRadiusIndex[2] = 28;
				count++;
			break;
		   
			case 86840:
				spellInfo->EffectRadiusIndex[0] = 28;
				spellInfo->EffectRadiusIndex[1] = 28;
				spellInfo->EffectRadiusIndex[2] = 28;
				count++;
			break;
			
			case 76355:
			case 89879:
				spellInfo->EffectRadiusIndex[0] = 9;
				spellInfo->EffectRadiusIndex[1] = 9;
				spellInfo->EffectRadiusIndex[2] = 9;
				count++;
			break;
			
			case 79505:
			case 91531:
			case 91532:
			case 91533:
				spellInfo->EffectRadiusIndex[0] = 28;
				spellInfo->EffectRadiusIndex[1] = 28;
				spellInfo->EffectRadiusIndex[2] = 28;
				count++;
			break;
			
			case 79023:
			case 91519:
			case 91520:
			case 91521:
				spellInfo->EffectRadiusIndex[0] = 28;
				spellInfo->EffectRadiusIndex[1] = 28;
				spellInfo->EffectRadiusIndex[2] = 28;
				count++;
			break;			
        case 1680:          // Whirlwind  (Fury)
            spellInfo->EffectRadiusIndex[0] = 14;
            spellInfo->EffectRadiusIndex[1] = 14;
            spellInfo->EffectRadiusIndex[2] = 14;
            count++;
            break;
        case 50622:          // Whirlwind (triggered by Bladestorm)
            spellInfo->EffectRadiusIndex[0] = 14;
            spellInfo->EffectRadiusIndex[1] = 14;
            spellInfo->EffectRadiusIndex[2] = 14;
            count++;
            break;
        case 44543:          // Fingers of Frost rank 1
            spellInfo->procChance = 7;
            count++;
            break;
        case 44545:          // Fingers of Frost rank 2
            spellInfo->procChance = 14;
            count++;
            break;
        case 83074:          // Fingers of Frost rank 3
            spellInfo->procChance = 20;
            count++;
            break;
        case 2643:          // Multi-Shot no-target Effect 0 fix.
            spellInfo->EffectImplicitTargetA[0] = TARGET_DST_TARGET_ENEMY;
            count++;
            break;
        case 82661:          // Aspect of the Fox
            spellInfo->EffectApplyAuraName[0] = SPELL_AURA_PROC_TRIGGER_SPELL;
            count++;
            break;
        case 82898:          // Crouching Tiger, Hidden Chimera (Rank 1)
        case 82899:          // Crouching Tiger, Hidden Chimera (Rank 2)
            spellInfo->EffectApplyAuraName[0] = SPELL_AURA_PROC_TRIGGER_SPELL;
            count++;
            break;
        case 87934:          // Serpent Spread
        case 87935:
            spellInfo->Effect[0] = SPELL_EFFECT_APPLY_AURA;
            spellInfo->EffectApplyAuraName[0] = SPELL_AURA_DUMMY;
            count++;
            break;
        case 88691:          // Marked for Death Tracking
            spellInfo->EffectApplyAuraName[0] = SPELL_AURA_MOD_STALKED;
            count++;
            break;
        case 89024:          // Pursuit of justice triggered
            spellInfo->AttributesEx6 = 0;
            count++;
            break;
        case 49838:          // Stop Time
        case 52916:          // Honor Among Thieves
        case 50526:          // Wandering Plague
            spellInfo->AttributesEx3 |= SPELL_ATTR3_NO_INITIAL_AGGRO;
            count++;
            break;
            // Bind
        case 3286:
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_TARGET_ENEMY;
            spellInfo->EffectImplicitTargetA[1] = TARGET_UNIT_TARGET_ENEMY;
            count++;
            break;
            // Holy Radiance
        case 86452:
            spellInfo->EffectRadiusIndex[0] = 9;
            count++;
            break;
			// Holy Nova
        case 15237:
            spellInfo->EffectRadiusIndex[0] = 13;	
             count++;	
             break; 
        case 8494:          // Mana Shield (rank 2)
            // because of bug in dbc
            spellInfo->procChance = 0;
            count++;
            break;
            // Heroism
        case 32182:
            spellInfo->excludeCasterAuraSpell = 57723;          // Exhaustion
            count++;
            break;
            // Blazing Harpoon
        case 61588:
            spellInfo->MaxAffectedTargets = 1;
            count++;
            break;
            // Bloodlust
        case 2825:
            spellInfo->excludeCasterAuraSpell = 57724;          // Sated
            count++;
            break;
            // Time Warp
        case 80353:
            spellInfo->excludeCasterAuraSpell = 80354;          // Temporal Displacement
            count++;
            break;
            // Ancient Hysteria
        case 90355:
            spellInfo->excludeCasterAuraSpell = 95809;          // Insanity
            count++;
            break;
            // Heart of the Crusader
        case 20335:
        case 20336:
        case 20337:
            // Glyph of Life Tap
        case 63320:
            // Entries were not updated after spell effect change, we have to do that manually :/
            spellInfo->AttributesEx3 |= SPELL_ATTR3_CAN_PROC_WITH_TRIGGERED;
            count++;
            break;
        case 16007:          // Draco-Incarcinatrix 900
            // was 46, but effect is aura effect
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_NEARBY_ENTRY;
            spellInfo->EffectImplicitTargetB[0] = TARGET_DST_NEARBY_ENTRY;
            count++;
            break;
        case 24131:          // Wyvern Sting
            // something wrong and it applied as positive buff
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_NEGATIVE_EFF0;
            count++;
            break;
        case 46841:          // Escape to the Isle of Quel'Danas
            // not sure why this is needed
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_TARGET_ANY;
            spellInfo->EffectImplicitTargetB[0] = TARGET_DST_DB;
            count++;
            break;
        case 26029:          // dark glare
        case 37433:          // spout
            spellInfo->Effect[0] = 0;          // remove damage effect, only anim is needed
            break;
        case 43140:
        case 43215:          // flame breath
        case 70461:          // Coldflame Trap
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_CONE_LINE;
            count++;
            break;
        case 24340:
        case 26558:
        case 28884:          // Meteor
        case 36837:
        case 38903:
        case 41276:          // Meteor
        case 57467:          // Meteor
        case 26789:          // Shard of the Fallen Star
        case 31436:          // Malevolent Cleave
        case 35181:          // Dive Bomb
        case 40810:
        case 43267:
        case 43268:          // Saber Lash
        case 42384:          // Brutal Swipe
        case 45150:
        case 95172:
        case 88942:          // Meteor Slash
        case 64422:
        case 64688:          // Sonic Screech
        case 72373:          // Shared Suffering
        case 71904:          // Chaos Bane
        case 70492:
        case 72505:          // Ooze Eruption
        case 72624:
        case 72625:          // Ooze Eruption
        case 89348:
        case 95178:          // Demon Repellent Ray
        case 86704:          // Ancient Fury
            // ONLY SPELLS WITH SPELLFAMILY_GENERIC and EFFECT_SCHOOL_DAMAGE
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_SHARE_DAMAGE;
            count++;
            break;
        case 88954:          // Consuming Darkness
            spellInfo->EffectRadiusIndex[0] = 12;          // (100)
            spellInfo->MaxAffectedTargets = 3;
            count++;
            break;
        case 95173:          // Consuming Darkness (H)
            spellInfo->EffectRadiusIndex[0] = 12;          // (100)
            spellInfo->MaxAffectedTargets = 8;
            count++;
            break;
        case 89000:
        case 95177:          // Fel Firestorm
            spellInfo->EffectRadiusIndex[0] = 15;          // (3)
            count++;
            break;
        case 59725:          // Improved Spell Reflection - aoe aura
            // Target entry seems to be wrong for this spell :/
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_PARTY_CASTER;
            spellInfo->EffectRadiusIndex[0] = 45;
            count++;
            break;
        case 27820:          // Mana Detonation
            //case 28062: case 39090:                 // Positive/Negative Charge
            //case 28085: case 39093:
        case 69782:
        case 69796:          // Ooze Flood
        case 69798:
        case 69801:          // Ooze Flood
        case 69538:
        case 69553:
        case 69610:          // Ooze Combine
        case 71447:
        case 71481:          // Bloodbolt Splash
        case 71482:
        case 71483:          // Bloodbolt Splash
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_EXCLUDE_SELF;
            count++;
            break;
        case 64844:          // Divine Hymn
        case 64904:          // Hymn of Hope
            spellInfo->AttributesEx &= ~SPELL_ATTR1_NEGATIVE;
            count++;
            break;
        case 44978:
        case 45001:
        case 45002:          // Wild Magic
        case 45004:
        case 45006:
        case 45010:          // Wild Magic
        case 31347:          // Doom
        case 41635:          // Prayer of Mending
        case 44869:          // Spectral Blast
        case 45027:          // Revitalize
        case 45976:          // Muru Portal Channel
        case 39365:          // Thundering Storm
        case 41071:          // Raise Dead (HACK)
        case 52124:          // Sky Darkener Assault
        case 42442:          // Vengeance Landing Cannonfire
        case 45863:          // Cosmetic - Incinerate to Random Target
        case 25425:          // Shoot
        case 45761:          // Shoot
        case 42611:          // Shoot
        case 62374:          // Pursued
            spellInfo->MaxAffectedTargets = 1;
            count++;
            break;
        case 62016:          // Charge Orb
            spellInfo->MaxAffectedTargets = 1;
            count++;
            break;
        case 52479:          // Gift of the Harvester
            spellInfo->MaxAffectedTargets = 1;
            // a trap always has dst = src?
            spellInfo->EffectImplicitTargetA[0] = TARGET_DST_CASTER;
            spellInfo->EffectImplicitTargetA[1] = TARGET_DST_CASTER;
            count++;
            break;
        case 85113:          // Aftermath
        case 85114:
            spellInfo->Targets = TARGET_UNIT_TARGET_ENEMY;
            break;
        case 31818:          // Life Tap
            spellInfo->Effect[0] = SPELL_EFFECT_ENERGIZE_PCT;
            break;
        case 41376:          // Spite
        case 39992:          // Needle Spine
        case 29576:          // Multi-Shot
        case 40816:          // Saber Lash
        case 37790:          // Spread Shot
        case 46771:          // Flame Sear
        case 45248:          // Shadow Blades
        case 41303:          // Soul Drain
        case 54172:          // Divine Storm (heal)
        case 29213:          // Curse of the Plaguebringer - Noth
        case 28542:          // Life Drain - Sapphiron
        case 66588:          // Flaming Spear
        case 54171:          // Divine Storm
            spellInfo->MaxAffectedTargets = 3;
            count++;
            break;
        case 68645:          // Rocket Pack! Hack untill movejump will be implemented properly
            spellInfo->Effect[0] = SPELL_EFFECT_KNOCK_BACK_DEST;
            spellInfo->EffectMiscValue[0] = -250;
            spellInfo->EffectBasePoints[0] = 150;
            break;
        case 38310:          // Multi-Shot
        case 53385:          // Divine Storm (Damage)
            spellInfo->MaxAffectedTargets = 4;
            count++;
            break;
        case 42005:          // Bloodboil
        case 38296:          // Spitfire Totem
        case 37676:          // Insidious Whisper
        case 46008:          // Negative Energy
        case 45641:          // Fire Bloom
        case 55665:          // Life Drain - Sapphiron (H)
        case 28796:          // Poison Bolt Volly - Faerlina
            spellInfo->MaxAffectedTargets = 5;
            count++;
            break;
        case 40827:          // Sinful Beam
        case 40859:          // Sinister Beam
        case 40860:          // Vile Beam
        case 40861:          // Wicked Beam
        case 54835:          // Curse of the Plaguebringer - Noth (H)
        case 54098:          // Poison Bolt Volly - Faerlina (H)
            spellInfo->MaxAffectedTargets = 10;
            count++;
            break;
        case 50312:          // Unholy Frenzy
            spellInfo->MaxAffectedTargets = 15;
            count++;
            break;
        case 38794:
        case 33711:          //Murmur's Touch
            spellInfo->MaxAffectedTargets = 1;
            spellInfo->EffectTriggerSpell[0] = 33760;
            count++;
            break;
        case 80128:          // Impending Victory Rank 1
        case 80129:          // Impending Victory Rank 2
            spellInfo->EffectTriggerSpell[0] = 0;
            count++;
            break;
        case 80979:          // Thunderstruck Rank 1
        case 80980:          // Thunderstruck Rank 2
            spellInfo->EffectTriggerSpell[1] = 0;
            count++;
            break;
        case 84604:          // Hold the Line Rank 1
        case 84621:          // Hold the Line Rank 2
            spellInfo->EffectTriggerSpell[0] = 0;
            count++;
            break;
        case 17941:          // Shadow Trance
        case 22008:          // Netherwind Focus
        case 31834:          // Light's Grace
        case 34754:          // Clearcasting
        case 34936:          // Backlash
        case 48108:          // Hot Streak
        case 51124:          // Killing Machine
        case 54741:          // Firestarter
        case 57761:          // Fireball! (Triggered by Brain Freeze)
        case 39805:          // Lightning Overload
        case 64823:          // Item - Druid T8 Balance 4P Bonus
        case 44401:          // Missile Barrage
        case 90174:          // Divine Purpose Proc
            spellInfo->procCharges = 1;
            break;
            // Need this otherwise we'll be having multiple chance rolls for judgement.
        case 85117:          // Divine Purpose (Rank 1)
        case 86172:          // Divine Purpose (Rank 2)
            spellInfo->AttributesEx3 = 0;
            break;
        case 53390:          // Tidal Wave
            spellInfo->procCharges = 2;
            count++;
            break;
        case 44544:          // Fingers of Frost
            spellInfo->EffectSpellClassMask[0] = flag96(685904631, 1151048, 0);
            count++;
            break;
        case 74396:          // Fingers of Frost visual buff
            spellInfo->procCharges = 2;
            spellInfo->StackAmount = 0;
            count++;
            break;
        case 28200:          // Ascendance (Talisman of Ascendance trinket)
            spellInfo->procCharges = 6;
            count++;
            break;
        case 47201:          // Everlasting Affliction
        case 47202:
        case 47203:
        case 47204:
        case 47205:
            // add corruption to affected spells
            spellInfo->EffectSpellClassMask[1][0] |= 2;
            count++;
            break;
        case 49305:
            spellInfo->EffectImplicitTargetB[0] = 1;
            count++;
            break;
        case 51852:          // The Eye of Acherus (no spawn in phase 2 in db)
            spellInfo->EffectMiscValue[0] |= 1;
            count++;
            break;
        case 52025:          // Cleansing Totem Effect
            spellInfo->EffectDieSides[1] = 1;
            count++;
            break;
        case 51904:          // Summon Ghouls On Scarlet Crusade (core does not know the triggered spell is summon spell)
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_CASTER;
            count++;
            break;
        case 29809:          // Desecration Arm - 36 instead of 37 - typo? :/
            spellInfo->EffectRadiusIndex[0] = 37;
            count++;
            break;
            // Master Shapeshifter: missing stance data for forms other than bear - bear version has correct data
            // To prevent aura staying on target after talent unlearned
        case 48420:
            spellInfo->Stances = 1 << (FORM_CAT - 1);
            count++;
            break;
        case 48421:
            spellInfo->Stances = 1 << (FORM_MOONKIN - 1);
            count++;
            break;
        case 48422:
            spellInfo->Stances = 1 << (FORM_TREE - 1);
            count++;
            break;
        case 779:          // Swipe Bear
            spellInfo->EffectRadiusIndex[0] = 8;
            count++;
            break;
        case 51466:          // Elemental Oath (Rank 1)
        case 51470:          // Elemental Oath (Rank 2)
            spellInfo->Effect[EFFECT_1] = SPELL_EFFECT_APPLY_AURA;
            spellInfo->EffectApplyAuraName[EFFECT_1] = SPELL_AURA_ADD_FLAT_MODIFIER;
            spellInfo->EffectMiscValue[EFFECT_1] = SPELLMOD_EFFECT2;
            spellInfo->EffectSpellClassMask[EFFECT_1] = flag96(0x00000000, 0x00004000, 0x00000000);
            break;
        case 47569:          // Improved Shadowform (Rank 1)
            // with this spell atrribute aura can be stacked several times
            spellInfo->Attributes &= ~SPELL_ATTR0_NOT_SHAPESHIFT;
            count++;
            break;
        case 8145:          // Tremor Totem (instant pulse)
        case 6474:          // Earthbind Totem (instant pulse)
            spellInfo->AttributesEx5 |= SPELL_ATTR5_START_PERIODIC_AT_APPLY;
            count++;
            break;
        case 30421:          // Nether Portal - Perseverence
            spellInfo->EffectBasePoints[2] += 30000;
            count++;
            break;
        case 42650:          // Army of the Dead - can be interrupted
            spellInfo->InterruptFlags = SPELL_INTERRUPT_FLAG_INTERRUPT;
            count++;
            break;
        case 61607:          // Mark of Blood
            spellInfo->AttributesEx |= SPELL_ATTR1_NO_THREAT;
            count++;
            break;
            // some dummy spell only has dest, should push caster in this case
        case 62324:          // Throw Passenger
            spellInfo->Targets |= TARGET_FLAG_UNIT_CASTER;
            count++;
            break;
        case 16834:          // Natural shapeshifter
        case 16835:
            spellInfo->DurationIndex = 21;
            count++;
            break;
        case 51735:          // Ebon Plague
        case 51734:
        case 51726:
            spellInfo->AttributesEx3 |= SPELL_ATTR3_STACK_FOR_DIFF_CASTERS;
            spellInfo->SpellFamilyFlags[2] = 0x10;
            count++;
            break;
        case 41013:          // Parasitic Shadowfiend Passive
            spellInfo->EffectApplyAuraName[0] = 4;          // proc debuff, and summon infinite fiends
            count++;
            break;
        case 27892:          // To Anchor 1
        case 27928:          // To Anchor 1
        case 27935:          // To Anchor 1
        case 27915:          // Anchor to Skulls
        case 27931:          // Anchor to Skulls
        case 27937:          // Anchor to Skulls
            spellInfo->rangeIndex = 13;
            count++;
            break;
        case 48743:          // Death Pact
            spellInfo->AttributesEx &= ~SPELL_ATTR1_CANT_TARGET_SELF;
            count++;
            break;
            // target allys instead of enemies, target A is src_caster, spells with effect like that have ally target
            // this is the only known exception, probably just wrong data
        case 29214:          // Wrath of the Plaguebringer
        case 54836:          // Wrath of the Plaguebringer
            spellInfo->EffectImplicitTargetB[0] = TARGET_UNIT_AREA_ALLY_SRC;
            spellInfo->EffectImplicitTargetB[1] = TARGET_UNIT_AREA_ALLY_SRC;
            count++;
            break;
        case 31687:          // Summon Water Elemental
            // 322-330 switch - effect changed to dummy, target entry not changed in client:(
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_CASTER;
            count++;
            break;
        case 35098:          // Rapid Killing
        case 35099:
            // just a temp solution to make Rapid Recuperation proc from this
            spellInfo->AttributesEx2 |= SPELL_ATTR2_TRIGGERED_CAN_TRIGGER_PROC;
            count++;
            break;
        case 12051:          // Evocation - now we can interrupt this
            spellInfo->InterruptFlags |= SPELL_INTERRUPT_FLAG_INTERRUPT;
            count++;
            break;
        case 44203:          // Tranquility
            spellInfo->MaxAffectedTargets = 5;
            count++;
            break;
        case 26573:          //Consecration
            spellInfo->EffectTriggerSpell[1] = 82366;
            spellInfo->EffectTriggerSpell[2] = 36946;
            count++;
            break;
        case 64321:          // Potent Pheromones
            // spell should dispel area aura, but doesn't have the attribute
            // may be db data bug, or blizz may keep reapplying area auras every update with checking immunity
            // that will be clear if we get more spells with problem like this
            spellInfo->AttributesEx |= SPELL_ATTR1_DISPEL_AURAS_ON_IMMUNITY;
            count++;
            break;
        case 69055:          // Saber Lash
        case 70814:          // Saber Lash
            spellInfo->EffectRadiusIndex[0] = 8;
            count++;
            break;
        case 69075:          // Bone Storm
        case 70834:          // Bone Storm
        case 70835:          // Bone Storm
        case 70836:          // Bone Storm
            spellInfo->EffectRadiusIndex[0] = 12;
            count++;
            break;
        case 18500:          // Wing Buffet
        case 33086:          // Wild Bite
        case 49749:          // Piercing Blow
        case 52890:          // Penetrating Strike
        case 53454:          // Impale
        case 59446:          // Impale
        case 62383:          // Shatter
        case 64777:          // Machine Gun
        case 65239:          // Machine Gun
        case 65919:          // Impale
        case 67858:          // Impale
        case 67859:          // Impale
        case 67860:          // Impale
        case 69293:          // Wing Buffet
        case 74439:          // Machine Gun
            mSpellCustomAttr[i] |= SPELL_ATTR0_CU_IGNORE_ARMOR;
            count++;
            break;
            // Strength of the Pack
        case 64381:
            spellInfo->StackAmount = 4;
            count++;
            break;
            // THESE SPELLS ARE WORKING CORRECTLY EVEN WITHOUT THIS HACK
            // THE ONLY REASON ITS HERE IS THAT CURRENT GRID SYSTEM
            // DOES NOT ALLOW FAR OBJECT SELECTION (dist > 333)
        case 70781:          // Light's Hammer Teleport
        case 70856:          // Oratory of the Damned Teleport
        case 70857:          // Rampart of Skulls Teleport
        case 70858:          // Deathbringer's Rise Teleport
        case 70859:          // Upper Spire Teleport
        case 70860:          // Frozen Throne Teleport
        case 70861:          // Sindragosa's Lair Teleport
            spellInfo->EffectImplicitTargetA[0] = TARGET_DST_DB;
            count++;
            break;
        case 63675:          // Improved Devouring Plague
            spellInfo->AttributesEx3 |= SPELL_ATTR3_NO_DONE_BONUS;
            count++;
            break;
        case 86674:          // Ancient Healer
            spellInfo->procCharges = 5;
            count++;
            break;
        case 81782:          // Power Word : Barrier
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_TARGET_ALLY;
            spellInfo->EffectImplicitTargetA[1] = TARGET_UNIT_TARGET_ALLY;
            spellInfo->EffectImplicitTargetB[0] = TARGET_NONE;
            spellInfo->EffectImplicitTargetB[1] = TARGET_NONE;
            spellInfo->DurationIndex = 39;
            count++;
            break;
            // this is here until targetAuraSpell and alike support SpellDifficulty.dbc
        case 70459:          // Ooze Eruption Search Effect
            spellInfo->targetAuraSpell = 0;
            count++;
            break;
        case 70728:          // Exploit Weakness
        case 70840:          // Devious Minds
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_CASTER;
            spellInfo->EffectImplicitTargetB[0] = TARGET_UNIT_PET;
            count++;
            break;
        case 70893:          // Culling The Herd
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_CASTER;
            spellInfo->EffectImplicitTargetB[0] = TARGET_UNIT_MASTER;
            count++;
            break;
        case 54800:          // Sigil of the Frozen Conscience - change class mask to custom extended flags of Icy Touch
                             // this is done because another spell also uses the same SpellFamilyFlags as Icy Touch
                             // SpellFamilyFlags[0] & 0x00000040 in SPELLFAMILY_DEATHKNIGHT is currently unused (3.3.5a)
                             // this needs research on modifier applying rules, does not seem to be in Attributes fields
            spellInfo->EffectSpellClassMask[0] = flag96(0x00000040, 0x00000000, 0x00000000);
            count++;
            break;
        case 70460:          // Coldflame Jets (Traps after Saurfang)
            spellInfo->DurationIndex = 1;          // 10 seconds
            count++;
            break;
        case 71413:          // Green Ooze Summon
        case 71414:          // Orange Ooze Summon
            spellInfo->EffectImplicitTargetA[0] = TARGET_DEST_DEST;
            count++;
            break;
            // THIS IS HERE BECAUSE COOLDOWN ON CREATURE PROCS IS NOT IMPLEMENTED
        case 71604:          // Mutated Strength
        case 72673:          // Mutated Strength
        case 72674:          // Mutated Strength
        case 72675:          // Mutated Strength
            spellInfo->Effect[1] = 0;
            count++;
            break;
        case 70447:          // Volatile Ooze Adhesive
        case 72836:          // Volatile Ooze Adhesive
        case 72837:          // Volatile Ooze Adhesive
        case 72838:          // Volatile Ooze Adhesive
        case 70672:          // Gaseous Bloat
        case 72455:          // Gaseous Bloat
        case 72832:          // Gaseous Bloat
        case 72833:          // Gaseous Bloat
            spellInfo->EffectImplicitTargetB[0] = TARGET_UNIT_TARGET_ENEMY;
            spellInfo->EffectImplicitTargetB[1] = TARGET_UNIT_TARGET_ENEMY;
            spellInfo->EffectImplicitTargetB[2] = TARGET_UNIT_TARGET_ENEMY;
            count++;
            break;
        case 70911:          // Unbound Plague
        case 72854:          // Unbound Plague
        case 72855:          // Unbound Plague
        case 72856:          // Unbound Plague
            spellInfo->EffectImplicitTargetB[0] = TARGET_UNIT_TARGET_ENEMY;
            count++;
            break;
        case 71518:          // Unholy Infusion Quest Credit
        case 72934:          // Blood Infusion Quest Credit
        case 72289:          // Frost Infusion Quest Credit
            spellInfo->EffectRadiusIndex[0] = 28;          // another missing radius
            count++;
            break;
        case 71708:          // Empowered Flare (Blood Prince Council)
        case 72785:          // Empowered Flare (Blood Prince Council)
        case 72786:          // Empowered Flare (Blood Prince Council)
        case 72787:          // Empowered Flare (Blood Prince Council)
            spellInfo->AttributesEx3 |= SPELL_ATTR3_NO_DONE_BONUS;
            count++;
            break;
        case 71340:          // Pact of the Darkfallen (Blood-Queen Lana'thel)
            spellInfo->DurationIndex = 21;
            count++;
            break;
        case 44614:          // Frostfire Bolt
            spellInfo->StackAmount = 0;          //TODO: remove when stacking of Decrease Run Speed % aura is fixed
            count++;
            break;
        case 74434:          // Soulburn
            spellInfo->procCharges = 1;
            count++;
            break;
        case 30541:          // Blaze (needs conditions entry)
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_TARGET_ENEMY;
            spellInfo->EffectImplicitTargetB[0] = 0;
            break;
        case 31447:          // Mark of Kaz'rogal (needs target selection script)
        case 31298:          // Sleep (needs target selection script)
            spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_CASTER;
            spellInfo->EffectImplicitTargetB[0] = 0;
            break;
        case 81008:          //Quake - Crystalspawn Giant
        case 92631:          //Quake - Crystalspawn Giant
            spellInfo->EffectRadiusIndex[0] = 80;
            count++;
            break;
        case 23126:          // World Enlarger
            spellInfo->AuraInterruptFlags |= AURA_INTERRUPT_FLAG_SPELL_ATTACK;
            count++;
            break;
        case 19970:          // Entangling Roots (Rank 6) -- Nature's Grasp Proc
        case 19971:          // Entangling Roots (Rank 5) -- Nature's Grasp Proc
        case 19972:          // Entangling Roots (Rank 4) -- Nature's Grasp Proc
        case 19973:          // Entangling Roots (Rank 3) -- Nature's Grasp Proc
        case 19974:          // Entangling Roots (Rank 2) -- Nature's Grasp Proc
        case 19975:          // Entangling Roots (Rank 1) -- Nature's Grasp Proc
        case 27010:          // Entangling Roots (Rank 7) -- Nature's Grasp Proc
        case 53313:          // Entangling Roots (Rank 8) -- Nature's Grasp Proc
            spellInfo->CastingTimeIndex = 1;
            count++;
            break;
        case 49206:          // Summon Gargoyle
            spellInfo->DurationIndex = 587;
            count++;
            break;
        case 53480:          // Roar of Sacrifice Split damage
            spellInfo->Effect[1] = SPELL_EFFECT_APPLY_AURA;
            spellInfo->EffectApplyAuraName[1] = SPELL_AURA_SPLIT_DAMAGE_PCT;
            spellInfo->EffectMiscValue[1] = 127;
            count++;
            break;
        case 71357:          // Order Whelp
            spellInfo->EffectRadiusIndex[0] = 22;
            count++;
            break;
        case 70598:          // Sindragosa's Fury
            spellInfo->EffectImplicitTargetA[0] = TARGET_DST_CASTER;
            count++;
            break;
        case 69846:          // Frost Bomb
            spellInfo->speed = 10;
            spellInfo->EffectImplicitTargetA[0] = TARGET_DEST_TARGET_ANY;
            spellInfo->EffectImplicitTargetB[0] = TARGET_UNIT_TARGET_ANY;
            spellInfo->Effect[1] = 0;
            count++;
            break;
        case 68282:          // Charge (ToC mount)
            spellInfo->Attributes |= SPELL_EFFECT_SCHOOL_DAMAGE;
            spellInfo->Attributes |= SPELL_EFFECT_CHARGE;
            spellInfo->EffectImplicitTargetA[1] = TARGET_UNIT_TARGET_ENEMY;
            spellInfo->EffectBasePoints[0] = 20 * 1000;
            break;
        case 51678:          //WintergraspSiegeEngine Ram set damage radius to 5 yards
            spellInfo->EffectRadiusIndex[0] = 52;
            spellInfo->EffectRadiusIndex[1] = 52;
            break;
        case 87959:          // Drink
            spellInfo->Category = 59;
            spellInfo->EffectApplyAuraName[1] = SPELL_AURA_MOD_POWER_REGEN;
            count++;
            break;
        case 87426:          // Summon Shadowy Apparition
            spellInfo->EffectBasePoints[0] = 1;
            count++;
            break;
        case 61719:          // Easter Lay Noblegarden Egg Aura
            spellInfo->AuraInterruptFlags = 0;
            count++;
            break;
        default:
            break;
        }

        switch (spellInfo->SpellFamilyName)
        {
        case SPELLFAMILY_WARRIOR:
            // Shout
            if (spellInfo->SpellFamilyFlags[0] & 0x20000 || spellInfo->SpellFamilyFlags[1] & 0x20)
                mSpellCustomAttr[i] |= SPELL_ATTR0_CU_AURA_CC;
            else
                break;
            count++;
            break;
        case SPELLFAMILY_HUNTER:
            // Monstrous Bite target fix
            // seems we incorrectly handle spell with "no target"
            if (spellInfo->SpellIconID == 599)
                spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_CASTER;
            else
                break;
            count++;
            break;
        case SPELLFAMILY_DRUID:
            // Starfall Target Selection
            if (spellInfo->SpellFamilyFlags[2] & 0x100)
                spellInfo->MaxAffectedTargets = 2;
            // Starfall AOE Damage
            else if (spellInfo->SpellFamilyFlags[2] & 0x800000)
                mSpellCustomAttr[i] |= SPELL_ATTR0_CU_EXCLUDE_SELF;
            // Roar
            else if (spellInfo->SpellFamilyFlags[0] & 0x8)
                mSpellCustomAttr[i] |= SPELL_ATTR0_CU_AURA_CC;
            // Rake
            else if (spellInfo->SpellFamilyFlags[0] & 0x1000)
                mSpellCustomAttr[i] |= SPELL_ATTR0_CU_IGNORE_ARMOR;
            else
                break;
            count++;
            break;
            // Do not allow Deadly throw and Slice and Dice to proc twice
        case SPELLFAMILY_ROGUE:
            if (spellInfo->SpellFamilyFlags[1] & 0x1 || spellInfo->SpellFamilyFlags[0] & 0x40000)
                spellInfo->AttributesEx4 |= SPELL_ATTR4_CANT_PROC_FROM_SELFCAST;
            else
                break;
            count++;
            break;
        case SPELLFAMILY_PALADIN:
            // Seals of the Pure should affect Seal of Righteousness
            if (spellInfo->SpellIconID == 25 && spellInfo->Attributes & SPELL_ATTR0_PASSIVE)
                spellInfo->EffectSpellClassMask[0][1] |= 0x20000000;
            else
                break;
            count++;
            break;
        case SPELLFAMILY_DEATHKNIGHT:
            // Icy Touch - extend FamilyFlags (unused value) for Sigil of the Frozen Conscience to use
            if (spellInfo->SpellIconID == 2721 && spellInfo->SpellFamilyFlags[0] & 0x2)
                spellInfo->SpellFamilyFlags[0] |= 0x40;
            count++;
            break;
        }
    }

    SummonPropertiesEntry *properties = const_cast<SummonPropertiesEntry*>(sSummonPropertiesStore.LookupEntry(121));
    properties->Type = SUMMON_TYPE_TOTEM;
    properties = const_cast<SummonPropertiesEntry*>(sSummonPropertiesStore.LookupEntry(647));          // 52893
    properties->Type = SUMMON_TYPE_TOTEM;

    CreatureAI::FillAISpellInfo();

    sLog->outString(">> Loaded %u custom spell attributes in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

// Fill custom data about enchancments
void SpellMgr::LoadEnchantCustomAttr ()
{
    uint32 oldMSTime = getMSTime();

    uint32 size = sSpellItemEnchantmentStore.GetNumRows();
    mEnchantCustomAttr.resize(size);

    uint32 count = 0;

    for (uint32 i = 0; i < size; ++i)
        mEnchantCustomAttr[i] = 0;

    for (uint32 i = 0; i < GetSpellStore()->GetNumRows(); ++i)
    {
        SpellEntry * spellInfo = (SpellEntry*) GetSpellStore()->LookupEntry(i);
        if (!spellInfo)
            continue;

        // TODO: find a better check
        if (!(spellInfo->AttributesEx2 & SPELL_ATTR2_UNK13) || !(spellInfo->Attributes & SPELL_ATTR0_NOT_SHAPESHIFT))
            continue;

        for (uint32 j = 0; j < MAX_SPELL_EFFECTS; ++j)
        {
            if (spellInfo->Effect[j] == SPELL_EFFECT_ENCHANT_ITEM_TEMPORARY)
            {
                uint32 enchId = spellInfo->EffectMiscValue[j];
                SpellItemEnchantmentEntry const *ench = sSpellItemEnchantmentStore.LookupEntry(enchId);
                if (!ench)
                    continue;
                mEnchantCustomAttr[enchId] = true;
                count++;
                break;
            }
        }
    }

    sLog->outString(">> Loaded %u custom enchant attributes in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}

void SpellMgr::LoadSpellLinked ()
{
    uint32 oldMSTime = getMSTime();

    mSpellLinkedMap.clear();          // need for reload case

    //                                                0              1             2
    QueryResult result = WorldDatabase.Query("SELECT spell_trigger, spell_effect, type FROM spell_linked_spell");
    if (!result)
    {
        sLog->outString(">> Loaded 0 linked spells. DB table `spell_linked_spell` is empty.");
        sLog->outString();
        return;
    }

    uint32 count = 0;

    do
    {
        Field *fields = result->Fetch();

        int32 trigger = fields[0].GetInt32();
        int32 effect = fields[1].GetInt32();
        int32 type = fields[2].GetInt32();

        SpellEntry const* spellInfo = sSpellStore.LookupEntry(abs(trigger));
        if (!spellInfo)
        {
            sLog->outErrorDb("Spell %u listed in `spell_linked_spell` does not exist", abs(trigger));
            continue;
        }
        spellInfo = sSpellStore.LookupEntry(abs(effect));
        if (!spellInfo)
        {
            sLog->outErrorDb("Spell %u listed in `spell_linked_spell` does not exist", abs(effect));
            continue;
        }

        if (trigger > 0)
        {
            switch (type)
            {
            case 0:
                mSpellCustomAttr[trigger] |= SPELL_ATTR0_CU_LINK_CAST;
                break;
            case 1:
                mSpellCustomAttr[trigger] |= SPELL_ATTR0_CU_LINK_HIT;
                break;
            case 2:
                mSpellCustomAttr[trigger] |= SPELL_ATTR0_CU_LINK_AURA;
                break;
            }
        }
        else
        {
            mSpellCustomAttr[-trigger] |= SPELL_ATTR0_CU_LINK_REMOVE;
        }

        if (type)          //we will find a better way when more types are needed
        {
            if (trigger > 0)
                trigger += SPELL_LINKED_MAX_SPELLS * type;
            else
                trigger -= SPELL_LINKED_MAX_SPELLS * type;
        }
        mSpellLinkedMap[trigger].push_back(effect);

        count++;
    }
    while (result->NextRow());

    sLog->outString(">> Loaded %u linked spells in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
    sLog->outString();
}
